Factor: $4 z ^ { 2 } - 20 z$
A) $4 ( z - 5 )$
B) $4 z ( z - 5 )$
C) $4 \left( z ^ { 2 } - 20 z \right)$
D) $4 z ( z - 20 )$
E) $20 z ( z - 4 )$

Name: Factor: $4 z ^ { 2 } - 20 z$ A) $4 ( z - 5 )$ B) $4 z ( z - 5 )$ C) $4 \left( z ^ { 2 } - 20 z \right)$ D) $4 z ( z - 20 )$ E) $20 z ( z - 4 )$
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Question

Quizplus · Accepted Answer

The common factor in the expression is 4z, so we can factor out 4z to get: 4z(z-5). This matches with choice B.

Factor 4z2−20z4 z ^ { 2 } - 20 z4z2−20z A) 4(z−5)4 ( z - 5 )4(z−5)

Factor $4 z ^ { 2 } - 20 z$ A) $4 ( z - 5 )$