Question

Solve for x.
x^2 + 8x + 16 = 0

Answer 1

x^2-8x+16 =e^0
x^2 - 8x + 16 = 1
x^2 - 8x + 15 = 0
(x-5) = 0 (x-3) = 0
x = 5 x = 3

Answer 2

break down the middle term

x^2 + 4x + 4x + 16 = 0

group

(x^2 + 4x) + (4x + 16) = 0

factor out

x(x+4) + 4(x+4) = 0

factor again

(x+4)(x+4) = 0

solve for x now

Answer 3

raise both sides to the e power then solve it.
(x-5)(x-3)

Answer 4

why is there e^0 lol

Answer 5

what did you do @doubledrive

Answer 6

@derptastic878 do you know what to do from where i stopped?

Answer 7

lgbasalolote is correct x=-4

Answer 8

e is for the exponent. im eating and reading the question and using the calc. so typing the e is better than ^. @Igbasallote

Answer 9

(x+4)(x+4) = (x+4)^2 so
sqrt(x+4)^2 = sqrt(0)
x+4 = 0
x = -4
Am I right?