Question

Rewrite x^2 - 6x + 9 as a square of a linear expression.

Answer 1

They want you to write that expression into the form (a+b)^2

Answer 2

Ok how do I do that?

Answer 3

What do you get when you factor x^2 - 6x + 9

Answer 4

ummm idk I only really know how to do 4 term polynomial factoring

Answer 5

find two numbers that multiply to 9 (last term) and add to -6 (middle coefficient)

Answer 6

-3 and 3

Answer 7

@jim_thompson5910

Answer 8

close, but no

Answer 9

-3 plus 3 = 0 when we want -6

Answer 10

and -3 times 3 = -9 when we want +9

Answer 11

its -3 and -3

Answer 12

so that means x^2 - 6x + 9 factors to (x-3)(x-3)

Answer 13

but (x-3)(x-3) is the same as (x-3)^2