Question

Use the quadratic formula to solve the equation.
-X^2+7x=8

Answer 1

`x = \frac{ - ( - 7) + - \sqrt{( - 7) {}^(2) } - 4 * 1 * 8}{ 2 * 1}`

`x = \frac{7 + - \sqrt {49 - 32} }{ 2}`

`x = ( 7 + - √(17) )/(2)`

`x 1= (7 + √(17) )/(2)`

`x 2= ( 7 - √(17) )/(2)`