Factor: $b ^ { 2 } - 4 b + 4$
A) $( b + 2 ) ( b - 2 )$
B) $( b - 2 ) ^ { 2 }$
C) $( b + 2 ) ^ { 2 }$
D) $( 2 + b ) ( 2 - b )$
E) Nonfactorable over the integers

Name: Factor: $b ^ { 2 } - 4 b + 4$ A) $( b + 2 ) ( b - 2 )$ B) $( b - 2 ) ^ { 2 }$ C) $( b + 2 ) ^ { 2 }$ D) $( 2 + b ) ( 2 - b )$ E) Nonfactorable over the integers
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Question

Quizplus · Accepted Answer

This is a perfect square trinomial, factoring into $(b - 2)^2$, because $(-2)^2 = 4$ and $-2 \cdot 2 = -4$, matching the middle term and constant term of the original expression.

Factor b2−4b+4b ^ { 2 } - 4 b + 4b2−4b+4

Factor $b ^ { 2 } - 4 b + 4$