Answer:
after solving the answer is:
2187x^14y^42
Step-by-step explanation:
We need to find (3x^2y^6)^7
We can solve this by using exponents law (a^m)^n = a^mn
(3x^2y^6)^7 = (3)^7.(x^2)^7.(y^6)^7
(3x^2y^6)^7 = 2187x^14y^42
So, after solving the answer is:
2187x^14y^42
