1.Factorise 9x^2+ 30xy+25y^2 2.Find the product using suitable identities. (4x -6)(4x+9) 3.Factorise 49x^2+y^2+4z^2+14xy -4yz - 28zx 4.Factorise 64a^3 -27b^3 -144a^2b+108ab^2 5.Evaluate (104)^3
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