Find the following by using Identity-II.
(i)
(x-7)
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that's used multiplicative identity
( -1 )
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Answer:(x-7)
here we use ( a - b ). = a² - 2ab + b²
( x- 7 ) = x² - 2×x×7. +7²
= x². - 14x +. 49
therefore,
the answer is , x² - 14x + 49
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