Question

exponent rules (variable and coefficients)
score: 9/10 penalty: none
question
simplify:
$(-m^3)(-9m)$
answer attempt 1 out of 2

Explanation:

Step1: Multiply the coefficients

$(-1) \times (-9) = 9$

Step2: Multiply the variable terms

$m^3 \times m^1 = m^{3+1} = m^4$

Step3: Combine coefficient and variable

$9 \times m^4$

Answer:

$9m^4$