Question

What number must you add to complete the square?
x^2+22x=9

Answer 1

add 121 or 11^2

Answer 2

square of 11 should be added

Answer 3

take 22 divide it by 2 than square it.

Answer 4

To complete the square of an equation you add the square of half the coefficient of x (not x^2).

Answer 5

It came out as a Decimal?

Answer 6

it should be 11 squared which equals 121

Answer 7

22/2 = 11
11^2 = 121

Answer 8

thats what you add to it

Answer 9

Oh. So the answer is 121,Right?

Answer 10

Yes

Answer 11

Yip