Question

How would you complete the square on the left side of this equation?
x^2-6x=15

A.
Add 6 to both sides of the equation.
B.
Subtract 6 from both sides of the equation.
C.
Add 9 to both sides of the equation.
D.
Subtract 9 from both sides of the equation.

Answer 1

you need to convert the left side to (x - 3)^2
if you expand that you'll find that the last number is what you want

Answer 2

HI!!

Answer 3

two steps only
what is half of 6?

Answer 4

3

Answer 5

right
and what is \(3^2\)

Answer 6

9

Answer 7

that is your answer , 9

Answer 8

D

Answer 9

because if
\[x^2-6x=15\] then adding 9 gives
\[x^2-6x+9=15+9\\
(x-3)^2=24\]\]

Answer 10

no dear never subtract when you are completing the square
you always ADD

Answer 11

Thanks (;