Factor completely.
-$$( a + 7 ) ^ { 2 } - y ^ { 2 }$$
A) $( a - 7 + y ) ^ { 2 }$
B) $( a - 7 - y ) ( a + 7 - y )$
C) $( a + 7 + y ) ( a + 7 - y )$
D) $( a + 7 - y ) ^ { 2 }$

Name: Factor completely. -\[( a + 7 ) ^ { 2 } - y ^ { 2 }\] A) $( a - 7 + y ) ^ { 2 }$ B) $( a - 7 - y ) ( a + 7 - y )$ C) $( a + 7 + y ) ( a + 7 - y )$ D) $( a + 7 - y ) ^ { 2 }$
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Question

Quizplus · Accepted Answer

This expression is a difference of squares, which factors as $(a+7)^2 - y^2 = (a+7+y)(a+7-y)$.

Factor Completely (a+7)2−y2( a + 7 ) ^ { 2 } - y ^ { 2 }(a+7)2−y2

Factor Completely $( a + 7 ) ^ { 2 } - y ^ { 2 }$