-9c^3d+4cd^3/6cd-4cd^2
2007-06-19 19:47:39 · 5 answers · asked by tickled pink 1 in Science & Mathematics ➔ Mathematics
-9c^3d+4cd^3/6cd-4cd^2
I assume you mean:
-9c³d + 4cd³
-----------------
6cd - 4cd²
group the similar items,
= cd(-9c² + 4d²)
-----------------------
......2cd(3 - 2d)
= (-9c² + 4d²)
-----------------------
....2(3 - 2d)
factorise (-9c² + 4d²) = (2d - 3)(2d + 3)
= (2d - 3)(2d + 3)
-------------------------
......-2(2d - 3)
= (2d + 3)
---------------
......-2
2007-06-19 20:25:38 · answer #1 · answered by jurassicko 4 · 0⤊ 0⤋
4cd³ - 9c³d âââ4d² - 9c²âââ( 2d - 3c ) ( 2d + 3c )
â¯â¯â¯â¯â¯â=ââ¯â¯â¯â¯â=ââ¯â¯â¯â¯â¯â¯â¯â¯â¯
6cd - 4cd² ââââ6 - 4dââââââ2 ( 3 - 2d )
2007-06-19 20:25:25 · answer #2 · answered by Zax 3 · 0⤊ 0⤋
-9c^3d+4cd^3/6cd-4cd^2 = cd(9c^2 + 4d^2) / cd ( 6 - 4d)
=(9c^2 + 4d^2) / ( 6 - 4d)
= (3c - 2d)(3c + 2d) / ( 6 - 4d)
2007-06-19 19:58:25 · answer #3 · answered by Tubby 5 · 0⤊ 0⤋
(- 9c^3d + 4cd^3)/(6cd - 4cd^2) =
- cd(9c^2 - 4d^2)/(2cd(3 - 2d)) =
- (3c - 2d)(3c + 2d)/(2(3 - 2d))
2007-06-19 20:07:16 · answer #4 · answered by Helmut 7 · 0⤊ 0⤋
- 9c^3d+4cd^3/6cd-4cd^2
= - 27cd + 12cd/6cd-8cd
= -39cd/-2cd
= 19.5
2007-06-19 20:01:20 · answer #5 · answered by justme 1 · 0⤊ 2⤋