factorise:
help me out with this question plz.
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P(x) = x³- 6x² + 5x + 12
P(-1) = (-1)³- 6(-1)² + 5(-1) + 12
= -1 -6 -5 + 12
= 0
x-1)x³- 6x²+ 5x + 12(6x + 5 + 12
x³- 6x
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x + 5x
x + 5
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x + 12
x + 12
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0
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