. Factor completely:
36x2 – 4y2
2006-12-19 15:35:52 · 6 answers · asked by Just Wondering 5 in Science & Mathematics ➔ Mathematics
36x^2 - 4y^2 = 4(9x^2 - y^2) = 4 (3x + y)(3x - y)
2006-12-19 15:40:50 · answer #1 · answered by Srinivas c 2 · 0⤊ 0⤋
If you would take the first step and factor out the 4 that is common to both terms, I believe that the answer would literally smack you in the face.
4(9x^2 - y^2)
Now, please try to visualize what that would factor into.
2006-12-19 23:41:51 · answer #2 · answered by bkc99xx 6 · 0⤊ 1⤋
ITS SIMPLE
36x^2 - 4y^2 = 4(9x^2 - y^2) (TAKE 4 OUTSIDE OF BRACE)
= 4 (3x + y)(3x - y) (AS WE KNOW (X^2-Y^2)=(X-Y)(X+Y))
2006-12-20 09:49:11 · answer #3 · answered by cham 2 · 0⤊ 0⤋
(6x)^2-(2y)^2=(6x-2y)(6x+2y)=4(3x-y)(3x+y)
2006-12-19 23:43:06 · answer #4 · answered by iyiogrenci 6 · 0⤊ 0⤋
(6x+2y)(6x-2y)
2006-12-19 23:40:50 · answer #5 · answered by VanessaM 3 · 0⤊ 0⤋
(6x+2y)(6x-2y)
2006-12-19 23:41:20 · answer #6 · answered by mediaptera 4 · 1⤊ 0⤋