multiply]
6y(-5y^4)
To multiply 6y by -5y^4, you can multiply the coefficients (-5 and 6) and the variables (y and y^4) separately:
6y * (-5y^4) = 6 * (-5) * y * y^4 = -30y * y^4 = -30y^5
6y(-5y^4)
6y * (-5y^4) = 6 * (-5) * y * y^4 = -30y * y^4 = -30y^5