f(x)=x to the 3rd power-3x squared-16x-12; K=6?

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f(x)=x to the 3rd power-3x squared-16x-12; K=6?

factor the polynomial given the f(k)=0

2007-05-05 17:51:54 · 4 answers · asked by rh 2 in Science & Mathematics ➔ Mathematics

4 answers

f(x)=x^3-3x^2-16x-12
f(6)=216-108-96-12
=216-216=0

f(x)=x^3-3x^2-16x-12
=(x-6)(x^2+3x+2)
=(x-6)(x+1)(x+2)

2007-05-05 18:02:05 · answer #1 · answered by iyiogrenci 6 · 0⤊ 0⤋

2007-05-06 00:59:39 · answer #2 · answered by idono 2 · 0⤊ 0⤋

use synthetic division
we know one zero, so we can create the factor (x-6)
x^3 - 3x^2-16-12 divide by x-6 =
x^2+3x+2
which factors to (x+2)(x+3)

x^3-3x^2-16x-12 = (x-6)(x+2)(x+3)

=)

2007-05-06 00:54:03 · answer #3 · answered by Anonymous · 0⤊ 0⤋

12 to the power of 3x -y x 12 to the power of -x = 12 squared to the power of 2x-y

2013-09-15 08:44:47 · answer #4 · answered by jenny 1 · 0⤊ 0⤋