hi, i need to know how i would factorise 3a^2b - 12ab^2? i haven't done this for a while but would it = 3ab(a - 4b)?? if this is wrong could you please show me where im going wrong but if it is correct could you also let me know!! cheers!
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is it $\displaystyle 3a^2b - 12ab^2$, it is obviously you answer take 3ab out of it
Your answer is correct
so if the question were 3x^2 - 4x, i would do simular to what i just did? so it would be x(3x -4)?
yes (reverse of distributive law)
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