The answer is 12×y^3×x^4.
You would first multiply -6 and -2, which is 12
Then multiply the y and y^2. The exponent rule says that if you multiply two of the same variables, you would add the exponents. y is y^1, so y^1×y^2=y^3
Now we has x^4, we keep it alone because it cannot multiply yo anything else