find the cube of (I)5a+3b (II)3a-1/a(anot equal to 0) (III)3x-2y-4z
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You can use the following formula to work this out:
(a + b) ^3 = (a^3) + 3*(a^2)*b + 3*a*(b^2) + b^3
(a + b) ^3 = (a^3) + 3*(a^2)*b + 3*a*(b^2) + b^3
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