Question

What are the solutions of x2=-7x-8

Answer 1

x =
`(1)/(2)` (-7±√17)

Explanation:

x² = -7x - 8

x² + 7x + 8 = 0

Using the quadratic formula, with a=1, b = 7 and c=8,

you will get x =
`(1)/(2)` (-7±√17)

Answer 2

x^2 = -7x -8

x^2 +7x +8 = 0

D = 49 -32 = 17

x_1,2 = (-7+/-sqrt17)/2 = (-7-sqrt17)/2 and (-7+sqrt17)/2

Explanation: