Question

Which of the binomials below is a factor of this trinomial?
x^2-13x+36
a. x+9
b. x+6
c. x-9
d. x-6

Answer 1

So let's check out some factors of 36:
12*3
6*6
9*4
18*2

Is there any way we can get 13 by `adding` a pair of these?
12+3 = 15
Hmm that pair doesn't work.

Answer 2

im thinking x-6??

Answer 3

BRAVO!

Answer 4

That doesn't really answer my question :\
So I'm not sure how you came to that conclusion.

Answer 5

i was thinking 6*6=36 and its negative

Answer 6

she is correct :)

Answer 7

oh wait no she isnt

Answer 8

x^2 -13x +36 =0
x*x-9x-4x+(-9)(-4)=0

hope these will help you

Answer 9

-6 +6 is not 13 :(

Answer 10

I think it might be c