Question

How do you multiply `yx ^ { 4} \cdot x ^ { - 1} y ^ { 4}`?

Answer 1

`y^5x^3`

Explanation:

First, group like terms and then use the rules for exponents to simplify:

`yx^4*x^-1y^4 => (y*y^4)*(x^4*x^-1) => (y^1*y^4)*(x^4*x^-1) =>`

`y^(1+4)x^(4-1) => y^5x^3`