Solution - Simplification or other simple results

Reformatting the input :

Changes made to your input should not affect the solution:

(1): "^-3" was replaced by "^(-3)".

Step  1  :

Equation at the end of step  1  :

  (22r(-3) • 2) • r2

Step  2  :

Multiplying exponents :

 2.1    2²  multiplied by  2¹   = 2^{(2 + 1)} = 2³

Equation at the end of step  2  :

  23r(-3) • r2

Step  3  :

Multiplying exponential expressions :

 3.1    r^(-3) multiplied by r² = r^{((-3) + 2)} = r^(-1) = ¹/_r¹ = ¹/_r

Final result :

  23r(-1)