Question

Solve 0 = - x^2 + 10x - 8

Answer 1

Answer:

x = 5 +- √17

Step-by-step explanation:

0 = -x^2 + 10x - 8

-(-x^2 + 10x - 8) = 0

Now do the quadratic formula with x^2 - 10x + 8 = 0

a = 1

b = -10

c = 8

$x = \frac{ - ( - 10) + - \sqrt{( - {10)}^{2} - 4 \times 1 \times 8} }{2 \times 1}$

$x = \frac{10 + - \sqrt{17} }{2}$

$x = 5 + \sqrt{17}$

$x = 5 - \sqrt{17}$