Factor completely.
-$$( c - 9 ) ^ { 2 } - ( 4 c - 2 ) ^ { 2 }$$
A) $- 15 c ^ { 2 } - 34 c + 85$
B) $( 5 c - 11 ) ( - 3 c - 7 )$
C) $( 5 c + 11 ) ( - 3 c + 7 )$
D) $- 15 c ^ { 2 } - 2 c + 77$

Question

Quizplus · Accepted Answer

The correct answer is B because:$$( c - 9 ) ^ { 2 } - ( 4 c - 2 ) ^ { 2 } = ( c - 9 + 4 c - 2 ) ( c - 9 - 4 c + 2 ) = ( 5 c - 11 ) ( - 3 c - 7 )$$

Factor Completely (c−9)2−(4c−2)2( c - 9 ) ^ { 2 } - ( 4 c - 2 ) ^ { 2 }(c−9)2−(4c−2)2

Factor Completely $( c - 9 ) ^ { 2 } - ( 4 c - 2 ) ^ { 2 }$