hey!! plz... solve this if u can.......
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x² - y² - 2y - 1
= x² - (y²+2y + 1)
= x² - (y+1)²
= (x - y - 1)(x + y + 1)
= x² - (y²+2y + 1)
= x² - (y+1)²
= (x - y - 1)(x + y + 1)
Answered by
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answer of the 7 the question will be
= 2x-2y -2y-1
= x. multiply by x - y multiply by y - y into y - 1
= 2x-2y -2y-1
= x. multiply by x - y multiply by y - y into y - 1
lavanya32:
sorry but its wrong
thanks
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