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6x squared - 10x =0 - Office Equipment & Supplies

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Factor out 3X
3X(2X-5)=0
The expression is equal to zero if one of the factors on the left side equals zero.
1st solution: 3X=0, thus X=0
2nd solution 2X-5 = 0 if X=5/2

Posted on Sep 10, 2010

  • k24674 Sep 10, 2010

    Very sorry Factor out 2X: 2X(3X-5)=0 is true if 2X=0 or 3X-5=0. The first case yields X=0 and the second case yields X=5/3

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I need to understand how to divide a binomial.


Let's take 2x^2 - 10x +12 and divide it by x-2.
__2x_-_6____________
x-2 ) 2x^2 - 10x + 12
2x^2 - 4x
------------
- 6x + 12
- 6x + 12
------------
0


How many times does x go into 2x^2. Put the answer, 2x above the 2x^2. Next mulitply (x-2) by 2x and put the answer under 2x^2. Now subtract that answer from 2x^2 - 10x and we get -6x (-10x - (-4x)).

How many time does x go into -6x. -6 time. Write this above the line and put the answer above the -10x. Next multiply (x-2) by -6 and put the answer under the -6x. Subtract and we get 0 and we are done. If we want to check our answer we can multiply (x-2) and (2x - 6) and we should get 2x^2 - 10 x + 12.

Good luck.

Paul

Oct 03, 2014 | Office Equipment & Supplies

1 Answer

-6x-3y=27


The x intercept is where your line will cross the x axis. Therefore, the value for y at this point is 0. Substitute 0 for y in this equation and solve for x.

6x + 3(0) = 27
x = 27/6
x = 4 1/2

x intercept = (4 1/2, 0)

Follow the same reasoning for the y intercept.

6(0) + 3y = 27
y = 27/3
y = 9

y intercept = (0,9)

Now plot these two points and draw your line through them.

May 18, 2012 | SoftMath Algebrator - Algebra Homework...

1 Answer

Solve using the quadratic formula: 36x^2 – 60x = -25


Why would you do that, when the expression is a perfect square?. Verify that (6x-5)^2=36x^2-60x+25.
Then the solution of (6x-5)^2=0 is a double root with value x=5/6

Nov 28, 2011 | Casio FX-115ES Scientific Calculator

1 Answer

What is the value of x in this equation : 6x+21+4x=-9


Dear Anne I am old school but I think it works lide this..

6x+21+4x=-9

so add 9 to both sides

6x+30+4x=0

so 6x+4x+30=0

so 10x+30=0

so x= -3

I hope this helps.

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1 Answer

3x(7x+6x)


For 3x(7x+6x)=0, x=0
For 3x(7x+6x)=1, x=1/39
For 3x(7x+6x)=2, x=2/39
For 3x(7x+6x)=3, x=3/39 or 1/13
For 3x(7x+6x)=4, x=4/39
And so on...

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1 Answer

(2x+3y)(3x+2y)


(2x - 3y)(3x + 2y) = 2x*3x + 2x*2y - 3y*3x - 3y*2y
= 6x^2 + 4xy - 9xy - 6y^2
= 6x^2 - 5xy - 6y^2 You multiply each element in the first set of brackets by each element in the second set of brackets and then consolidate like terms and arrange them in sequence of powers, first x and then y. So:
2x by 3x = 6x squared
2x by 2y = 4xy
-3y by 3x = -9xy
-3y by 2y = 6y squared

6x squared -5xy + 6y squared

Dec 04, 2010 | Yahoo Computers & Internet

2 Answers

-20=-4x-6x


try to collect the like terms:-20=-10x
divide both sides the coefficient of X which -10
X=-20/-10
X=2

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1 Answer

I have a LG GE20 DVD Rewriter Is a DVD+RW disc a format that is editable and suitable for this unit?


The LG G20 DVD Rewriter is an advanced external burner that supports 'editable' Rewritable DVD+RW disk.
As a generic comment, not all writable/rewritable media are made equal and problem with branded & unbranded disks are not uncommon, so stick to brands that work for you for your specific unit!
The following is the advertised support for your unit, hope it helps:
Reading Rate DVD-R/-RW/-ROM 16x/13x/16x/16xSL/12xDL max. DVD-RAM 2x, 3x-5x, 6x-12x DVD-Video (CSS) 4,8x max. (Single/Dual Layer) DVD+R/+RW 16x/13x max./ 12xDL max. CD-R/RW/ROM 48x/40x/48x max. CD-DA (DAE) 40x max. Burning Speed DVD-R 2x, 4x CLV, 8xZCLV, 16x PCAV, 20X CAV DVD-RW 1x, 2x, 4x, 6x CLV DVD-RAM 2x, 3x ZCLV, 3x - 5x PCAV, 12x PCAV DVD+R 2.4x, 4x, 8x, 12x, 16x PCAV, 20X CAV DVD+R Double Layer 2.4x, 4x, 10x, 12x ZCLV DVD-R Dual Layer 2x, 4x, 6x CLV, 10x, 12x ZCLV DVD+RW 2.4x, 4x, 6x, 8x ZCLV CD-R 4x, 8x CLV, 16x, 24x, 32x, 40x, 48x ZCLV CD-RW 4x, 8x, 10x CLV, 16x CLV, 24x, 32x ZCLV

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1 Answer

Is the ordered pair a solution of the equation? 6x - 3 = y; (0, -3)


6x- 3 = y; (0, -3)

Here 6x - 3 = y is the equation
The ordered pair is (0, -3 )
It means if you substitutes 0 for x and -3 for y the equation will be true
Let us substitute and see:-
'6x' (means 6 times x) means 6 times 0 which is equal to 0
So the equation 6x - 3 = y becomes
0- 3 = -3 is correct
The ordered pair means the values of x and y which make the equation correct
Hope this is clear enough
Good luck
luciana44

Sep 27, 2009 | The Learning Company Achieve! Math &...

1 Answer

Hl-dt-st dvdram gsa-t20n ata burn speed for cdr changes to 10x minimum automatic soon as i put a blank cdr in. i need to do slower burn Speed (4x) and i tried with different software and its always the...


Your drive doesn't support slower burning speeds unfortuately, here are the specifications for it:

Write Speed DVD+R 2.4x CLV, 4x ZCLV, 8x CAV DVD-R 2x CLV, 4x ZCLV, 8x CAV DVD+RW 2.4x, 3.3x CLV, 4x ZCLV, 8x ZCLV
(8x Speed disc: 3.3x CLV, 8x ZCLV)
DVD-RW 1x, 2x CLV, 4x, 6x ZCLV DVD-RAM 2x, 3x ZCLV, 5x PCAV(Ver.2.2) (16x Media: Not support) CD-R 10x CLV, 16x, 24x ZCLV CD-RW 4x, 10x CLV, 16x ZCLV
(High Speed: 10x CLV, Ultra Speed: 16x ZCLV, Ultra Speed plus: 16x ZCLV)
DVD+R DL 2.4x CLV, 4x ZCLV, 6x ZCLV DVD-R DL 2x CLV, 4x ZCLV, 6x ZCLV Read Speed DVD-R/RW/ROM 8x/8x/8x max. DVD-R DL 6x max. DVD-RAM (Ver.1.0/2.2) (Ver.1.0) 2x
(Ver.2.2) 2x, 3x, 5x
DVD-Video(CSS Compliant Disc) 4x max. (Single/Dual layer) DVD+R/+RW 8x/8x max. DVD+R DL 6x max. CD-R/RW/ROM 24x/24x/24x max. CD-DA (DAE) 24x max. Sustained Transfer Rate DVD-ROM 11.08 Mbytes/s (8x) max. CD-ROM 3,600 kB/s (24x) max.

Jan 28, 2009 | Computers & Internet

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