2y^2-5y-18 factor?

4 ⤊

2007-11-21 01:46:13 · 5 answers · asked by cmerritt32 2 in Science & Mathematics ➔ Mathematics

( 2 y - 9 ) (y + 2 )
Check
2 y ² + 4 y - 9 y - 18
2 y ² - 5 y - 18 (as required)

2007-11-21 02:06:36 · answer #1 · answered by Como 7 · 2⤊ 1⤋

2y^2-5y-18
2yÂ² + 4y -9y - 18
2y(y+2) -9(y+2)
(y+2) (2y-9)
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2007-11-21 10:23:13 · answer #2 · answered by Joymash 6 · 0⤊ 1⤋

2y^2 + 4y - 9y - 18
2y(y + 2) -9(y + 2)
(2y - 9)*(y + 2)

2007-11-21 09:50:44 · answer #3 · answered by **PiNoY YFC** 7 · 1⤊ 0⤋

(2y - 9) (y + 2)

2007-11-21 09:51:00 · answer #4 · answered by Doctor Q 6 · 1⤊ 0⤋

(2y-9)(y+2)

2y*y=2y^2
-9*y=-9y
2y*2=4y
-9*2=-18

2y^2-5y-18

2007-11-21 10:00:10 · answer #5 · answered by Dave aka Spider Monkey 7 · 0⤊ 1⤋