Question

Please help i cannot figure it out at all!!

Answer 1

`x=(8√(64-72) )/(2)`

Explanation:

This question is asking you to use the quadratic formula. The quadratic formula looks like
`x=\frac{-b\sqrt{b^(2)-4ac } }{2a}`.

In this case, a=1; b=-8; and c=18.

Now, input the correct values into the equation.

`x=\frac{-(-8)\sqrt{-8^(2)-4(1)(18) } }{2(1)}`

Simplify.

`x=(8√(64-72) )/(2)`