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Factorize Each of the Following Algebraic Expression: 16 − A6 + 4a3b3 − 4b6 - Mathematics

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Question

Factorize each of the following algebraic expression:
16 − a6 + 4a3b3 − 4b6

Sum

Solution

\[16 - a^6 + 4 a^3 b^3 - 4 b^6 \]

\[ = 16 - ( a^6 - 4 a^3 b^3 + 4 b^6 )\]

\[ = 4^2 - [( a^3 )^2 - 2 \times a^3 \times 2 b^3 + (2 b^3 )^2 ]\]

\[ = 4^2 - ( a^3 - 2 b^3 )^2 \]

\[ = [4 - ( a^3 - 2 b^3 )][4 + ( a^3 - 2 b^3 )]\]

\[ = (4 - a^3 + 2 b^3 )(4 + a^3 - 2 b^3 )\]

\[ = ( a^3 - 2 b^3 + 4)( - a^3 + 2 b^3 + 4)\]

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Chapter 7: Factorization - Exercise 7.6 [Page 23]

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RD Sharma Mathematics [English] Class 8
Chapter 7 Factorization
Exercise 7.6 | Q 8 | Page 23

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