Question

How do I solve: (4x-1)(3x+7) = (5x-1)(2x+3)-6? The answer is supposed to be: -3+/-2√2.. how?

Answer 1

I got \[72x ^{2} + 103x -25 =0\] and do I use quadratic formula?

Answer 2

i get:
2x^2 +12x+2 = 0

Answer 3

something's wrong with your calculation...you can't get 72x^2...:D

Answer 4

really?

Answer 5

but yes you would use quadratic formula

Answer 6

hooow>

Answer 7

(4x-1)(3x+7) = 12x^2 -3x +28x -7

(5x-1)(2x+3)-6 = 10x^2 -2x +15x -3 -6

Answer 8

for the (5x-1)(2x+3)-6, i don't multiply -6 to the rest of the terms?

Answer 9

only if its (-6)*(5x-1)(2x+3)
the way its written it implies subtracting 6

Answer 10

really? ohh.. o.o thank you!!

Answer 11

yw