Asked by Christina
Factor by grouping.
7z^2+21z-az-3a
7z^2+21z-az-3a
Answers
Answered by
Jai
7z^2 + 21z - az - 3a
7z(z + 3) - a(z + 3)
(7z - a)(z + 3)
7z(z + 3) - a(z + 3)
(7z - a)(z + 3)
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