Factorize the following by spliting the middle term z2+11z+18
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Answer:
(z+2) (z+9)
Step-by-step explanation:
Z^2 + 11z + 18
= z^2 + 9z + 2z + 18
=z( z + 9 ) + 2 ( z + 9 )
= ( z + 9 ) ( z + 2 ) ( answer )
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