Question

Solve. x^2 + 8x = 24
answers:
a. -4 +-2 sqrt 2
b. -4 +-2 sqrt 10
c. -4 +- 2 sqrt 5
d. -4 +- 2 sqrt 7

help pleasee :)

Answer 1

x^2+8x-24=0
x^2+8x-24+16-16=0
(x+4)^2-24-16=0
(x+4)^2-40=0
follow that.

Answer 2

soo what would the answer be ? @ amoodarya

Answer 3

x=-4 +-sqrt40
if you simplify that b is correct

Answer 4

thanks so much