IP1U4 SWI (Algebraic Identities) Q19

IP1U4 SWI (Algebraic Identities) Q19

IP 1

Factorise completely

\(4x^2 + 9y^2 - 12xy - 16\)
\(m^2 - 2mn + n^2 - r^2\)
\(a^2 + b^2 - 2ab - 1\)
\(9a^2 - b^2 + 4b - 4\)

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Answer:(i) \((2x-3y+4)(2x-3y-4)\) (ii) \((m-n+r)(m-n-r)\) (iii) \((a-b+1)(a-b-1)\) (iv) \((3a+b-2)(3a-b+2)\)

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