Math, asked by deepkaurmehak03, 3 months ago

23. Simplify by using identity :
(2x + 5)2 – (2x-5)2

Answers

Answered by lahari60

1

Answer:

(2x+5)2 -(2x-5) 2

=(4x+10) -(4x-10)

identity

(a+b) -(a-b)

=2b

so answer us 2X10=20

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