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(x2 + y2)(-x2 + y2)...find product using suitable property |
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Answer»
As As we know that (a+b)(a−b)=a 2 −b 2
(X− x
)(x+ x 1
)(x 2 + x 2
1
)(x 4 + x 4
1
)=(x 2 − x 2
1
)(x 2 + x 2
1
)(x 4 + x 4
1
) =((x 2 ) 2 −( x 2
1
) 2 )(x 4 + x 4
1
)=(x 4 − x 4
1
)(x 4 + x 4
1
)=(x 4 ) 2 −( x 4
1
) 2 =x − x 8
1
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