(4) Simplify : (2x + 5)²- (2x - 5)²
Answers
Answered by
0
Answer:
40x
Step-by-step explanation:
a²-b²=(a+b)(a-b)
(2x + 5)²- (2x - 5)²=(2x+5+2x-5)(2x+5-2x+5)
=(4x)(10)=40x.
HOPE THIS HELPS!
Answered by
0
we know that a2- b2=(a+b)(a-b)
(2x+5)2-(2x-5)2=(2x+5+2x-5)(2x+5)-(2x-5)
=(4x)(10)
=40x (ANS)
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