Question

How do you simplify `\frac { 20x ^ { 12} y ^ { 9} } { 4x ^ { 8} y ^ { 6} }`?

Answer 1

`5x^4y^3`

Explanation:

Note that `x^12` is the same as `x^8 xxx^4`
Note that `y^9` is the same as `y^6xxy^3`

`20/4xx x^8/x^8xx x^4 xxy^6/y^6 xxy^3`

`color(white)("d")5color(white)("d")xx1color(white)("d")xx x^4 xxcolor(white)("d")1 color(white)("d")xxy^3`

`5x^4y^3`