# How do you put 7 with a negative 2 exponent over 4 with a negative 1 exponent?

7^-2 line 4^-1

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4/7^2 = 4/49

Posted on May 03, 2017

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Posted on Jan 02, 2017

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## Related Questions:

### 2negative 3 plus 3negative 3

Just want to make sure that we are on the same page.

2^(-3) + 3^(-3)

2 to the exponent -3 + 3 to the exponent -3

Because of BEDMAS, we have to do the exponent calculations first and then do the addition between the two terms last.

The rule of negative exponents is you put 1 over the base to the same exponent, but change the exponent from negative to positive.

=1/(2^3) + 1/(3^3)

= 1/8 + 1/27

To add or subtract numbers, we need a common denominator.

Let's factor 8 and 27 to get the lowest common multiple.

8 - 1 2 4 8
27 - 1 3 9 27

Nothing in common to eliminate, so we have to use 8 x 27 or 216.

27/216 + 8/216 = 35/216

Good luck,

Paul

Mar 11, 2017 | Homework

Tip

### Negative numbers with even exponents on casio fx-115es

When you push the change sign (-) button, a number button, and any even power it returns a negative value.

In other words if you type -4^2 it will treat it like this:

-(4)^2 = -16

Even though any number to an even exponent should be even. To get around this any time you have an even power on a negative number type it like this.

(-4)^2 = 16

on Apr 30, 2010 | Casio FX-115ES Scientific Calculator

### How to enter exponents

If you mean an exponent of ten, use the EE function (the shifted function of the "," key, located just above the "7" key. For example, to enter 1.2 times ten to the negative 3, press 1 . 2 2ND [EE] (-) 3

To raise a number to an exponent, use the ^ key located just above the divide key. For example, to calculate 3 raised to the 4th, press 3 ^ 4 ENTER

Sep 26, 2011 | Texas Instruments TI-83 Plus Calculator

### I need help on typing in exponents like (6.02*10^23) (8.65*10^4)

6 . 0 2 EE 2 3 * 8 . 6 5 EE 4 =

The EE (enter exponent) key is located just above the 7 key. If you want a negative exponent, make sure you use the +/- key located just to the right of the decimal point key instead of the - key.

Aug 30, 2011 | Texas Instruments TI-30XA Calculator

### I am using a TI-30 calculator and I am trying to calculate student loan payments. I need to know how to put a negative exponent into the calculator to process the formula. Example: (1+ .0075) to an...

Depending on your version of the TI-30, you will either find a button with a y to the exponent of x or a button that is the carot (^) sign. you would type (1.0075)^(-240), where ^ is the appropriate button (y^x or just ^).

Jul 18, 2011 | Computers & Internet

### How do you put in the number in scientific notation on the TI 34 II calculator?

Type in the mantissa, then the EE key (for Enter Exponent) above the 7 key, then the exponent. If it's a negative exponent, press the (-) key to the right of the decimal point before entering the exponent.

Sep 03, 2010 | Texas Instruments TI-34II Explorer Plus...

### How to use negative exponents on a calculator?

Uh yes it will allow you to enter a negative exponent.... press the numbers you want then hit EXP button, then hit the +/- button and then the exponent. 60 % of the time, it works...... everytime.

Sep 20, 2009 | Texas Instruments TI-83 Plus Calculator

### How do you square a fraction with a negative number like (3/4)^-2

Place both the base and the exponent in parentheses

(3/4)^(-2) then press enter. Your answer will be in decimal form at first 1.777...

Press MATH
Select the 1: Fraction option and it will convert your decimal value to the fraction answer of 16/9.

Negative exponents flip the fraction. For instance, (3/4)^(-1) = 4/3. So for (3/4)^(-2) you could just square the numerator and denominator separately to get 9/16, and then flip the fraction to account for the negative. That will give you 16/9.

Jul 24, 2009 | Texas Instruments TI-83 Plus Calculator

### Dividing by a negative exponent

(2x3^2) divided by (2x3^(-2))
just make sure to use double parenthesis around the negative exponent so that you get the right answer

Feb 08, 2009 | Texas Instruments TI-30XA Calculator

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