I can not seem to get the hang of these. They seem like they should be so easy.
2007-10-26 15:21:55 · 10 answers · asked by Nicole D 1 in Science & Mathematics ➔ Mathematics
(5x-3)^2
2007-10-26 15:25:49 · answer #1 · answered by fuilui213 6 · 0⤊ 0⤋
You find the possible combinations for 25 and 9. For 25, it is either 1&25 or 5&5. For 9, it is either 1&9 or 3&3.
Since 9 is positive and the second term is negative, you know that both terms are negative.
Try 5&5 first.
(5x- )(5x- )
See if 1&9 works by doing the OI part of FOIL.
(5x-1)(5x-9)
-45x+5x = -40x NOT A MATCH
Try 3&3
(5x-3)(5x-3)
-15x-15x=-30x A MATCH
The answer is (5x-3)(5x-3)
2007-10-26 15:30:44 · answer #2 · answered by Kris S 4 · 0⤊ 1⤋
25x² - 30x + 9
(5x - 3)(5x - 3)
(5x - 3)²
2007-10-26 15:42:35 · answer #3 · answered by Marvin 4 · 0⤊ 0⤋
first, you need 2 numbers that when multiplied, equal 25x^2. do this with a FOIL box. then you need 2 numbers that when added equal 9 but when multiplied equal -30.
2007-10-26 15:33:51 · answer #4 · answered by omygosh 4 · 0⤊ 1⤋
(5x-3)^2
2007-10-26 18:03:06 · answer #5 · answered by Kenneth Koh 5 · 0⤊ 0⤋
(5x-3)^2
2007-10-26 15:25:55 · answer #6 · answered by bassxx2099 1 · 0⤊ 0⤋
Keep trying to do them yourself. Having someone else do your homework is no way to learn.
2007-10-26 15:30:39 · answer #7 · answered by Greg H 4 · 0⤊ 1⤋
it's (5x -3) (5x - 3)
2007-10-26 15:26:25 · answer #8 · answered by Computer Guy 7 · 0⤊ 0⤋
(5x-3)(5x-3)
2007-10-26 15:26:04 · answer #9 · answered by Ms. Exxclusive 5 · 0⤊ 0⤋
i thinks that this is impossible
2007-10-26 15:28:04 · answer #10 · answered by Dane B 2 · 0⤊ 1⤋