Question

(3x^2a - 4y^a z^3a) ^2

Answer 1

9x^4a - 24x^2ay^az^3a + 16y^2az^6a

Answer 2

(3x^2a - 4y^a z^3a) * (3x^2a - 4y^a z^3a)
Remember, when you multiply terms with the same base, you add the exponents.

Answer 3

what did you get as a final answer?

Answer 4

Here's a rule that might help...
\[(a + b)^{2}=a^{2}+2ab+b^{2}\]\[(a-b)^{2}=a^{2}-2ab+b^{2}\]
In your case, \[a=3x^{2a}\]\[b=4y^{a}z^{3a}\]