Factor.
-$25 y ^ { 2 } - 49$
A) $( 5 y + 7 ) ^ { 2 }$
B) $( 5 y + 7 ) ( 5 y - 7 )$
C) $( 5 y - 7 ) ^ { 2 }$
D) prime polynomial

Name: Factor. -$25 y ^ { 2 } - 49$ A) $( 5 y + 7 ) ^ { 2 }$ B) $( 5 y + 7 ) ( 5 y - 7 )$ C) $( 5 y - 7 ) ^ { 2 }$ D) prime polynomial
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Question

Quizplus · Accepted Answer

This is a difference of squares: $25y^2 - 49 = (5y)^2 - 7^2$, which factors to $(5y + 7)(5y - 7)$.

Factor - 25y2−4925 y ^ { 2 } - 4925y2−49 A) (5y+7)2( 5 y + 7 ) ^ { 2 }(5y+7)2

Factor
- $25 y ^ { 2 } - 49$ A) $( 5 y + 7 ) ^ { 2 }$