Question

Big Question:
To rationalize a fraction means to remove all non-rational numbers from the denominator of the fraction. Rationalise (a^2)/(3+√b^3)
by multiplying the numerator and
denominator by 3 − √b^3, and then evaluate if b = a^2 and a = 2. Show all of your working.

Answer 1

so, did you do what they asked? What do you get?

Answer 2

Sorry for late reply, but after multiplying 3 − √b^3 in num and dom, I am stuck at a^(6/2)/b^(3/2), which I believe, is incorrect.