Factor this first for best answer?

1 ⤊

4y³ + 20y² - 9y - 45

2007-12-18 02:38:55 · 5 answers · asked by speedndelko4u 1 in Science & Mathematics ➔ Mathematics

=4y^2(y+5) - 9(y+5)
=(4y^2-9)(y+5)
=(2y-3)(2y+3)(y+5)

2007-12-18 02:46:23 · answer #1 · answered by ironduke8159 7 · 1⤊ 0⤋

2007-12-18 02:42:16 · answer #2 · answered by satacelda 4 · 0⤊ 1⤋

4y^2(y+5)-9(y+5)
=(y+5)(4y^2-9)
=(y+5)(2y+3)(2y-3)

2007-12-18 03:00:52 · answer #3 · answered by Anonymous · 0⤊ 0⤋

I bet you haven't tried yourself first

2007-12-18 02:41:21 · answer #4 · answered by Anonymous · 0⤊ 1⤋

that = my brain exploding

2007-12-18 02:42:55 · answer #5 · answered by Anonymous · 0⤊ 1⤋