IP1U4 SWI (Algebraic Identities) Q8

IP1U4 SWI (Algebraic Identities) Q8

IP 1

Factorise completely

\((3m + 4n)^2 - (4m + 5n)^2\)
\((a + b)^2 - (a - b)^2\)
\(50x^2 - 72y^2\)
\(x^4 - (y + z)^4\)

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Answer:(i) \(-(7m+9n)(m+n)\) (ii) \(4ab\) (iii) \(2(5x+6y)(5x-6y)\) (iv) \([x^2+(y+z)^2](x+y+z)(x-y-z)\)

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