Geography, asked by rashmijha1983, 7 months ago

slove using identity (2a-7) (2a-7)

Answers

Answered by rvgaurav11197

0

Answer:

(2a - 7)(2a - 7) = (2a - 7)^2

(a - b)^2 = a^2 + b^2 - 2ab

= 4a^2 + 49 - 28a

Answered by seemardc26

0

Answer:

(a-b)^2=a^2+b^2-2ab

(2a)^2+(7)^2-2×2a×7

4a^2+49-28a

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