Question

1. (-5m³)(3m⁸)

Explanation:

Step1: Multiply the coefficients

$(-5) \times 3 = -15$

Step2: Multiply the variable terms

$m^3 \times m^8 = m^{3+8} = m^{11}$

Step3: Combine the results

Multiply the coefficient product and variable product together.

Answer:

$-15m^{11}$