Question

Can someone please find the answer to this equation using the quadratic formula please 2x2 - 8x = -7

Answer 1

2x^2-8x+7=0

Answer 2

(2+-sqrt(2))/2

Answer 3

4 +- not 2. stupid.

Answer 4

\[x=\frac{ 8\pm \sqrt{\left( -8 \right)^{2}-4*2*7} }{2*2 }\]
solve it.

Answer 5

here i will give you a hint. when b (equivalently coefficient in front of x ) is even, this is simpler in most settings. First let ax^2+2bx+c=0