(a) Factorisefully 3a3b+12a2b2 +9a5b3

3a^2b(a + 4b + 3a^3b^2 ) 

CM

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3(x-2) - 2(x-2)


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If a and b are the roots of the quadric polynomial 2x^2+6x+7 what are a+b and ab?


a). Solve x-4=13, b). solve 7y=35 c). solve 3w-9=27