2007-06-28 14:30:34 · 6 answers · asked by lindasalicea 1 in Science & Mathematics ➔ Mathematics
(2x - 4)^2
= (2x)^2 - 16x + 4^2
= 4x^2 - 16x + 16
2007-06-28 14:34:07 · answer #1 · answered by Kemmy 6 · 2⤊ 0⤋
That is
(2x-4)(2x-4)
Use FOIL
First terms times first terms,
outer terms times outer terms
inner term times inner term, and
last term by last term
2x * 2x = 4x^2
2x * -4 = -8x
2x*-4 = -8x
-4 * -4 = 16
Then combine like terms.
2007-06-28 21:35:53 · answer #2 · answered by lilfry14 3 · 1⤊ 0⤋
2x * 2x = 4x^2
2x * -4 = -8x
2x*-4 = -8x
-4 * -4 = 16
2007-06-28 21:46:39 · answer #3 · answered by wael t 1 · 0⤊ 0⤋
(2x - 4).(2x - 4)
= 4x² - 8x - 8x + 16
= 4x² - 16x + 16
2007-07-02 17:22:07 · answer #4 · answered by Como 7 · 0⤊ 0⤋
4x^2 -8x - 8x + 16
4x^2 - 16x + 16
4(x^2 - 4x +4)
4(x - 2)(x - 2)
4(x - 2)^2
2007-06-28 21:34:46 · answer #5 · answered by Anonymous · 1⤊ 0⤋
(2x-4)² use fFOIL
(2x-4)(2x-4)
First: 4x²
Outside: -8x
Inside: -8x
Last: 16
Sum: 4x²-16x+16
2007-06-28 22:23:00 · answer #6 · answered by yupchagee 7 · 0⤊ 0⤋