write expression in factored form?

0 ⤊

4x^2 -81

note:^2 is exponent

2006-06-08 03:16:37 · 5 answers · asked by Anonymous in Science & Mathematics ➔ Mathematics

(2x-9)(2x+9)

a guess... its been a long time since I did that stuff

2006-06-08 03:20:14 · answer #1 · answered by Dan 1 · 0⤊ 0⤋

4x^2 - 81 = (2x - 9)(2x + 9)

2006-06-08 13:44:26 · answer #2 · answered by Sherman81 6 · 0⤊ 0⤋

(2x-9)(2x+9)

(the other person was right, it must have not been that long:)

2006-06-08 10:23:11 · answer #3 · answered by HK 2 · 0⤊ 0⤋

(2x + 9) (2x - 9)

2006-06-09 01:22:03 · answer #4 · answered by aquamarine21 3 · 0⤊ 0⤋

(2x-9)(2x+9)

2006-06-08 10:36:20 · answer #5 · answered by gari 3 · 0⤊ 0⤋