SOLUTION: Solve the equation by factoring: 4x^2+15x=25 What I did: 4x^2+15x-25=0 (x+20)(x-5)=0 x+20=0 x-5=0 x+-20 x=5

You can put this solution on YOUR website!
You brought the 25 back onto the side with the other parts, but when factoring, 20 * 5 is not 25 ... you looked for what added to 25 .. not what multiplied to get 25.


F: 4x * x = 4x^2
O: 4x * 5 = 20x
I: -5 * x = -5x
L: -5 * 5 = -25

and
add five and subtract five
and
and
Divide by four on the first part
and
x = {-5, 5/4}