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Multiply the binomials. and(34a2+3b2)and4(a2-23b2) - Mathematics

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Question

Multiply the binomials.

`(3/4 a^2 + 3b^2) and 4(a^2 - 2/3 b^2)`

Sum

Solution

`(3/4 a^2+ 3b^2) xx [4(a^2 - 2/3 b^2)]`

= `(3/4 a^2 + 3b^2) xx (4a^2 - 8/3 b^2)`

= `3/4 a^2 xx (4a^2 - 8/3 b^2) + 3b^2 xx (4a^2 - 8/3 b^2)`

= 3a2 − 2a2b2 + 12b2a2 − 8b4

= 3a4 + 10a2b2 − 8b4

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Chapter 9: Algebraic Expressions and Identities - Exercise 9.4 [Page 148]

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NCERT Mathematics [English] Class 8
Chapter 9 Algebraic Expressions and Identities
Exercise 9.4 | Q 1.6 | Page 148
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