Question

Find the exact solution of -x2 +7x + 5 = 0 by using the Quadratic Formula.

Answer 1

The answer to your question is:

x 1 = -0.65

x2 = 7.65

Explanation:

Equation -x² + 7x + 5 = 0

a = -1

b = 7

c = 5

Quadratic formula x = -b ±√(b² -4ac) / 2a

x = - 7 ± √(7² -4(-1)(5) / 2(-1)

x = -7 ± √(49 + 20) / -2

x = -7 ± √69 / -2

x = - 7 ± 8.3 / -2

x1 = -7 + 8.3 / -2 x2 = -7 -8.3 / -2

x 1 = -0.65 x2 = 7.65

Answer 2

-7 - 69/ -2 , -7 + 69/ -2

pretend there's that weird square root thing over 69

gaut hmath