Math, asked by vishal899, 1 year ago

Show that (2x+5)^2-40=(2x-5)^2

Answers

Answered by minhsay9

0

Answer:

(2x+5)^2-(2x-5)^2=40

(2x+5-2x+5)(2x+5+2x-5)=40

10.4x=40

40x=40

x=1

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