2006-12-17 09:35:05 · 6 answers · asked by styles4u 4 in Science & Mathematics ➔ Mathematics
First: determine/check to see if you can find the least common factor/number divisible by 15, 7, -2. In this case, we can't find the least common factor.
Second: take the first coefficient and multiply it by the last coefficient = -30. Find two numbers that give you -30 when multiplied and the middle coefficient (7) when added/subtracted:
*We can use: 10, -3
Third: rewrite the expression and factor each set:
= (15x^2 +10x) - (3x - 2)
= 5x(3x + 2) -1 (3x + 2)
= (3x + 2)(5x - 1)
2006-12-17 10:28:14 · answer #1 · answered by ♪♥Annie♥♪ 6 · 3⤊ 0⤋
15x^2 + 7x - 2 = (5x - 1)(3x + 2)
2006-12-17 09:51:52 · answer #2 · answered by Northstar 7 · 3⤊ 0⤋
(3x+2)(5x-1)
Check:
15x^2-3x+10x-2=
15x^2+7x-2
2006-12-17 10:04:58 · answer #3 · answered by Anonymous · 2⤊ 0⤋
here is the answer :
(3x+2)(5x-1)
2006-12-17 09:37:45 · answer #4 · answered by Gardenia 6 · 3⤊ 0⤋
(5x-1)(3x+2)
2006-12-17 09:38:26 · answer #5 · answered by Watel 2 · 3⤊ 0⤋
(3x+2)(5x-1)
2006-12-17 09:36:46 · answer #6 · answered by abcde12345 4 · 3⤊ 0⤋