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3 votes
Factor the polynomial below completely.

z^2 + 9z + 20

User Diazlp
by
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1 Answer

3 votes

Answer:

Explanation:

z^2+9z+20

=z^2+(5+4)z+20

=z^2+5z+4z+20

=z(z+5)+4(z+5)

=(z+5)(z+4)

User Torkil Johnsen
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