Question

How do I completely factor x^2-8x+16?

Answer 1

what multiply equals 16 and add together to equal 8?

Answer 2

basically what two numbers

a) multiply to 16

AND

b) add to -8

at the same time

Answer 3

Would it be (x+4) than?

Answer 4

yea!

Answer 5

-4 and -4 add to -8 and they multiply to 16

so it's really (x-4)(x-4) or (x-4)^2

Answer 6

no, its 4

Answer 7

Yes exactly what can you multiply to get 16 but add to -8?
\[ x^2-8x+16\]
\[(x-4)(x-4)\]
\[(x-4)^2\]

Answer 8

thanks guys!

Answer 9

yw :)