(b-7) (b-7) solve in squares by using identies
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(b-7)(b-7)
it means (b-7)square
which is
b×b+7×7-2×b×7
when solved I get
b×b-14b +49 as ur ans
it means (b-7)square
which is
b×b+7×7-2×b×7
when solved I get
b×b-14b +49 as ur ans
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Answered by
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(b-7) are two times then do it (b-7) sq. and then solve it as in given figure I have done
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