22. By using identity – II, solve (2a-7)^2
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Answered by
0
Step-by-step explanation:
(2a+7)^2=(2a)^2+7^2+2*2a*7
=4a^2+49+28a
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Answered by
0
Answer:
4a²+49-28a
Step-by-step explanation:
(2a-7)²
2a²+7²-2×2a×7
4a²+49-28a
Hope it helps....
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