Answer:
Find h(−1)=0, then divide h(x) by (x+1) to find the other factors.
First note that h(−1)=−1+2+5−6=0, so (x+1) is a factor of h(x)
Divide h(x) by (x+1) using synthetic division:
So: x3+2x2−5x−6=(x+1)(x2+x−6)=(x+1)(x+3)(x−2)
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Answer:
Find h(−1)=0, then divide h(x) by (x+1) to find the other factors.
First note that h(−1)=−1+2+5−6=0, so (x+1) is a factor of h(x)
Divide h(x) by (x+1) using synthetic division:
So: x3+2x2−5x−6=(x+1)(x2+x−6)=(x+1)(x+3)(x−2)