Question

how do you solve x2+8x by completing the square

Answer 1

you have the formula \(\large ax^2+bx+c\) and you're given \[\large x^2+8x\]

Answer 2

set = to 0
x^2 +8x = 0
take half the second term
(x+4)^2 = 4^2 = 16
(x+4)^2-16

Answer 3

x^2+8x = (x+4)^2-16

Answer 4

I don't know why one would do such a thing...

Answer 5

factor out the x and get the same solution...