simplify each expression using law of exponents (4a^3)(-3a^2)(5a)

Answer 1

Law of exponents:

aᵇ ∙ aᶜ = aᵇ ⁺ ᶜ

Remark:

a = a¹

4 a³ ∙ ( - 3 a² ) ∙ 5 a = - 4 a³ ∙ 3 a² ∙ 5 a¹ =

- 4 ∙ 3 ∙ 5 ∙ a³ ∙ a² ∙ a¹ = - 60 a³ ⁺ ² ⁺ ¹ = - 60 a⁶

Answer 2

4 * - 3 * 5 = -60
3+2+1= 6
-60 a^6