IP1U4 SWI (Algebraic Identities) Q7

IP1U4 SWI (Algebraic Identities) Q7

IP 1

Factorise completely

\(a^4 - 1024\)
\(81m^2 - 49n^2\)
\(a^2 - (b - c)^2\)
\(16a^2 - (3b + 2y)^2\)

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Answer:(i) \((a^2+32)(a^2-32)\) (ii) \((9m+7n)(9m-7n)\) (iii) \((a+b-c)(a-b+c)\) (iv) \((4a+3b+2y)(4a-3b-2y)\)

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