Factor: $b ^ { 2 } - 25$
A) $( b + 5 ) ( b - 5 )$
B) $( b - 5 ) ^ { 2 }$
C) $( b + 5 ) ^ { 2 }$
D) $( 5 + b ) ( 5 - b )$
E) Nonfactorable over the integers

Name: Factor: $b ^ { 2 } - 25$ A) $( b + 5 ) ( b - 5 )$ B) $( b - 5 ) ^ { 2 }$ C) $( b + 5 ) ^ { 2 }$ D) $( 5 + b ) ( 5 - b )$ E) Nonfactorable over the integers
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Question

Quizplus · Accepted Answer

This is a difference of squares, which can be factored into $(b+5)$ and $(b-5)$.

Factor b2−25b ^ { 2 } - 25b2−25 A) (b+5)(b−5)( b + 5 ) ( b - 5 )(b+5)(b−5)

Factor $b ^ { 2 } - 25$ A) $( b + 5 ) ( b - 5 )$