Question

What number would you have to add to both sides to complete the square?



x2 – 16x = –8



A.
–64


B.
–16


C.
16


D.


64

Answer 1

either A or D not sure

Answer 2

@Nnesha

Answer 3

ok... so what is half of -16..?

then square that value...


that is what is added to both sides to complete the square

remember

\[(a - b)^2 = a^2 - 2ab + b^2\]

Answer 4

@Nnesha

Answer 5

well its not A

Answer 6

so then D

Answer 7

well is

\[x^2 - 16x + 64\] a perfect square... if you say yes, then you have your answer

Answer 8

yes