2007-01-12 08:25:27 · 9 answers · asked by Ethan S 2 in Science & Mathematics ➔ Mathematics
Much better.
This is a difference of squares, because we have
(2x)^2 - 1
So we can factor this as
(2x - 1) (2x + 1)
2007-01-12 08:27:54 · answer #1 · answered by Puggy 7 · 3⤊ 0⤋
This an example of the difference of squares -->
a^2 - b^2 whose factors are (a-b)(a+b)
Now the given, can be re-written as (2x)^2 - (1)^2,
thus the factors are, using the format on top, (2x -1) (2x +1). Please note one is negative and the other is positive.
Reminder: this will not work if given is 4x^2 + 1.
2007-01-12 16:40:18 · answer #2 · answered by Aldo 5 · 1⤊ 0⤋
This is a difference of squares, so take the square root of each term, thereby creating two binomials with opposite signs.
(2x-1)(2x+1)
2007-01-12 16:28:33 · answer #3 · answered by Anonymous · 1⤊ 1⤋
(2x+1)(2x-1) by using the formula(difference squares)
2007-01-12 16:33:20 · answer #4 · answered by ♥♪♫Priya_akki™♫♪♥ 6 · 1⤊ 0⤋
(2x+1)(2x-1) because 2x*2x=4x^2 and -1*1=-1.
2007-01-12 16:41:29 · answer #5 · answered by Anonymous · 0⤊ 0⤋
we hade the rule that says:
(a-b)(a+b)= a^2 - b^2
So for your question we have :
(2x)^2-1^2= (2x-1)(2x+1)
2007-01-12 17:32:10 · answer #6 · answered by Arash J 2 · 0⤊ 0⤋
it's a perfect square........
(2x-1)(2x+1)
2007-01-12 16:28:52 · answer #7 · answered by :-) 3 · 1⤊ 2⤋
The answer is 15 if you make X to equal the amount of your own homework that you do.
2007-01-12 16:30:13 · answer #8 · answered by Garret Tripp 3 · 0⤊ 5⤋
12, 345.98<23x3.14-123,654,623,8765,875,.00
is that it...............................no
2pts thx
2007-01-12 16:29:38 · answer #9 · answered by Veronica G 3 · 2⤊ 4⤋