Question

Simplify each expression. Only use positive exponents.

1) 5m^5 m^-8

2.) (4.5)^4(4.5)^-2

3.) (x^2 n^4) (n^-8)

Please help!!

Answer 1

1) 5/m^3

2) (4.5)^2

3) x^2/n^4

Explanation:

1) 5m^5 m^-8 = 5m^(5 +(-8)) = 5m^-3 = 5/m^3

2.) (4.5)^4(4.5)^-2 = (4.5)^(4 + (-2)) = (4.5)^2

3.) (x^2 n^4) (n^-8) = x^2 n^(4 - 8) = x^2n^-4 = x^2/n^4