Answer :
when ur multiplying with exponents with the same base, u add the exponents
2y^2 * 3y^5 = (2 * 3)(y^2 * y^5) = 6y^(2 + 5) = 6y^7
2y^2 * 3y^5 = (2 * 3)(y^2 * y^5) = 6y^(2 + 5) = 6y^7