factorisation: question. no. 10 nd 11
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question 10 = to 3 square minus x square equal to (3 + X) ×(3 - x)
equal to (3 + X) ×(3 - X) + Y(2 x - y )
equal to (3 + X) ×(3 - X) + Y(2 x - y )
jiya6666:
no the answer is wrong
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