### Possible Answer

Best Answer: Factor out (a+b) (a+b) (2a+b +a+2b)/(3a+3b) Simplifying (a+b)(3a + 3b)/(3a+3b) Simplifying again you get the answer (a+b) ... I'm a bit confused is it looks like to me this: (a+b)(2a+b) + (a+b)(a+2b) / 3(a+b) but could you possible mean this [(a+b)(2a+b) + (a+b)(a+2b ... - read more

First, you group the same variable, becomes: =3a^2b + 2a^2b^2 + a^2b^2 - ab^2 = 3a^2b + 3a^2b^2 -ab^2 --- > a^2b^2 is the same as 1a^2b^2, just add the coefficients and rewrite the variable. - read more

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