Questions & Answers for: SoftMath as 22

2x^2-19x+22 I'm assumeing the problem is 2x^2 - 19x+22 = 0, solve for x. I don't see any easy to factor this so I'll either need to complete the square or use the quadratic equation. Using the ...

...+ 88X + 340 = 640 Subtract 640 from both sides: 4X^2 + 88X - 300 = 0 Divide both sides by 4: X^2 + 22X - 75 = 0 Use the quadratic equation to solve for X, with A=1, B=22, C=75 X = [-22 +/-

6m+3(2m+5)+7 6m+6m+15+7=0 12m=-22 M= -22/12

3/a+1/2=11/5a how do you solve 3/a + 1/2 -> ((3*2) + (1*a)) / (a*2) -> (6 + a)/2a so (6 + a)/2a = 11/5a -> (6 + a)*5a/2a = 11 -> 6 + a = 11*2/5 so a = 22/5 - 6 = 4.4 - 6 = -1.6