multiply (y²+7) (8y²+9
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Question : Multiply (y'2 + 7)(8y'2 + 9)
Answer :-
(y'2 + 7)(8y'2 + 9)
We know that,
(a+b)(c+d) = a(c×d)+b(c+d)
y'2(8y'2 + 9) + 7(8y'2 + 9)
(8y'4 + 9y'2) + (56y'2 + 63)
8y'4 + 9y'2 + 56y'2 + 63
8y'4 + 65y'2 + 63
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