Question

x2 − 8x − 4 = 0.

Answer 1

Are you trying to factor?

Answer 2

Use the quadratic formula to solve the quadratic equation

Answer 3

a=1 b=-8 and c =-4

the formula is
\[-b \pm \sqrt{b ^{2}-4ac}\] divided by 2a

so if you plug it in, what do you get?

Answer 4

to solve, \(\large x^2-8x-4=0 \), you can use the quadratic fomula... identify a, b, and c in \(\large ax^2+bx+c=0 \) in your equation and plug into:
\[\large x=\frac{-b\pm\sqrt{b^2-4ac}}{2a} \]

Answer 5

i came up with 4+2square toot sign 5

Answer 6

* root .

Answer 7

:) Good job

Answer 8

THANKS (:

Answer 9

Although it think it should be + or -, depends what type of answer you were looking for
So \[4 \pm 2\sqrt{5}\]