Factor x^2 - 36. Show your work.

Question

anonymous · Answer

@abb0t

one098 · Answer

Have you tried to find it?

anonymous · Answer

yeah, and here are all the possibillities:

1 x 36 = 36
2 x 18 = 36
3 x 12 = 36
4 x 9 = 36
6 x 6 = 36
9 x 4 = 36
12 x 3 = 36
18 x 2 = 36
36 x 1 = 36

anonymous · Answer

all those put into (x+y)(x+y)

one098 · Answer

$$x^{2}-36$$
And yes, however its negative 36.
$$(x-6)(x+6)$$
Could this work?

usukidoll · Answer

perfect square formula X___X

anonymous · Answer

all those put into (x+y)(x+y)

usukidoll · Answer

hey! it's (x-a)(x+b) where a,b=numbers  Let a,b = 6

usukidoll · Answer

think of it this way .. what's 6^2?  What is the square root of 36?

anonymous · Answer

sorry computer went crazy :P

anonymous · Answer

6

usukidoll · Answer

yes... so perfect square formula is in the form of (x+y)(x-y). Try y = 6 expand it out with foil and see what happens

anonymous · Answer

mind teaching me foil? everyone uses it, but I wasn't taught :(

usukidoll · Answer

you mean first outer inner last?
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 I use a number code to remember 
so for first which is 1 and 3 you multiply the 2 together....and then do the same for the rest.. sorry I don't feel well