Answer:
the answer is E
Step-by-step explanation:
d. 10a³b⁻⁴
Rule:
aᵃ × aᵇ = aᵃ⁺ᵇ
2a³b⁻² × 5ab⁻²
2 × 5 = 10
a³⁺¹ = a⁴
b⁻²⁻² = b⁻⁴
10a⁴b⁻⁴
