(2 x2 + 7 x + 3).
2006-10-10 15:01:46 · 5 answers · asked by Korey's Mamacita 1 in Science & Mathematics ➔ Mathematics
I forgot how, but I'll give you the answer: (2x+1)(x+3)
2006-10-10 15:05:30 · answer #1 · answered by brother from QG 3 · 1⤊ 0⤋
2x^2 + 7x + 3
when i am not certain how to factor it, i use
x = (-b ± sqrt(b^2 - 4ac))/(2a)
x = (-7 ± sqrt(7^2 - 4(2)(3)))/(2(2))
x = (-7 ± sqrt(49 - 24))/4
x = (-7 ± sqrt(25))/4
x = (-7 ± 5)/4
x = (-12/4) or (-2/4)
x = -3 or (-1/2)
ANS : (x + 3)(2x + 1)
2006-10-10 22:38:03 · answer #2 · answered by Sherman81 6 · 0⤊ 0⤋
You need to find terms (Ax+B)(Cx+D) so that AC=2, BC+AD=7, and DB=3. Normally, you just want to check with integers, because that's often all that you need.
2006-10-10 22:11:15 · answer #3 · answered by zex20913 5 · 0⤊ 0⤋
(2x+1) (x+3)
2006-10-10 22:06:16 · answer #4 · answered by First L 1 · 0⤊ 0⤋
(2x+1)(x+3)
2006-10-10 22:04:00 · answer #5 · answered by people suck 6 · 0⤊ 0⤋