randVar() randRangeNonZero(-10, 10)
randRangeWeighted(-10, 10, 0, 0.5) randRangeWeighted(-10, 10, 0, 0.5)
new RationalExpression([[1, X], A]) new RationalExpression([[1, X], B]) new RationalExpression([[1, X], C]) FACTOR1.multiply(FACTOR2) FACTOR1.multiply(FACTOR3)

Simplify the following expression and state the condition under which the simplification is valid:

`\dfrac{NUMERATOR}{DENOMINATOR}`

(FACTOR2.toString())/(FACTOR3.toString())
`X \neq \space`-A

First factor the expressions in the numerator and denominator.

`\qquad \dfrac{NUMERATOR}{DENOMINATOR} = \dfrac{(FACTOR2)(FACTOR1)}{(FACTOR3)(FACTOR1)}`

Notice that the term `(FACTOR1)` appears in both the numerator and denominator.

Dividing both the numerator and denominator by `(FACTOR1)` gives:

`\qquad \dfrac{FACTOR2}{FACTOR3}` or more simply, `\qquad FACTOR2`
`\qquad \dfrac{FACTOR2}{FACTOR3}`

Since we divided by `(FACTOR1)`, `X \neq -A`.

`\qquad writeExpressionFraction(FACTOR2, FACTOR3); \space X \neq -A`