2007-12-02 02:41:47 · 8 answers · asked by ilovedstny 1 in Science & Mathematics ➔ Mathematics
(5 x )(x ² - 2x - 3)
(5 x) (x - 3) (x + 1)
2007-12-02 03:06:27 · answer #1 · answered by Como 7 · 3⤊ 1⤋
5x^3 - 10x^2 -15x
5x(x^2 - 2x - 3)
5x(x - 3)(x + 1)
Note that -3 + 1 = - 2 and (-3)(1) = - 3
2007-12-02 10:45:15 · answer #2 · answered by kindricko 7 · 1⤊ 1⤋
5x^3-10x^2-15x
=5x(x^2-2x-3)
=5x(x-3)(x+1).
2007-12-02 10:46:05 · answer #3 · answered by Anonymous · 0⤊ 0⤋
5x * ( x^2 - 2x - 3)
5x * (x-3)(x+1)
2007-12-02 10:45:53 · answer #4 · answered by Anonymous · 1⤊ 0⤋
5x( x^2 -2x -3)=0
x^2 -3x +x -3=0.
x( x-3)+1( x-3)=0. (x+1) (x -3)=0.
x=3. x= -1.
2007-12-02 14:10:32 · answer #5 · answered by Sasi Kumar 4 · 0⤊ 2⤋
5x(x^2-2x-3)
which is 5x(x-3)(x+1)
2007-12-02 10:44:53 · answer #6 · answered by se.berk 1 · 2⤊ 0⤋
take out 5 x common..
--> 5x [x^2 - 2x - 3x]
--> 5x[x^2 - 3x + x - 3x]
--> 5x [x(x-3) +1 (x-3)]
-->5x (x-3) (x+1)
2007-12-02 10:46:15 · answer #7 · answered by The learner 2 · 0⤊ 1⤋
=(5x^3-5x^2)-(5x^2-15x)
=5x(x^2-1)-5x(x-3)
=5x(x^2-x+2)
2007-12-02 11:03:09 · answer #8 · answered by chheangheng.pouv 2 · 0⤊ 1⤋