Use the quadratic formula to solve the equation x2+7x

The solution of the equation x2+7x is 0, - 7 using the quadratic formula.

Step-by-step explanation:

x2 + 7x = 0

-b ± √ b2 - 4 (ac) / 2a

substitution,

a = 1, b = 7, c = 0

= - 7 ± √ (7) 2 - 4 (1 x 0) / 2 x 1

= - 7 ± 7 / 2

x = 0, - 7