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(7x+y)
x+y
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C solution and full
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plz try this question urself this is very much easy
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Answer:
(a+(2/7)*b^2)(7a-b^2)
=a*7a-a*b^2+(2/7)b^2*7a-(2/7)b^2*b^2
=7a^2-ab^2+2ab^2-(2/7)*b^4
=7a^2+ab^2-(2/7)b^4 (ans).....
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