Simplifying Rational Expressions and Identifying Restrictions
10 tutor-authored questions for this Ontario curriculum expectation, ordered easiest to hardest — every one with a full worked solution. Work through them free, no account needed.
Sample: the first question, solved
Cancel the common factor in (x²−9)/(x−3) and state the resulting expression, including the restriction.
📘 Worked solution
✓Factor the numerator as (x−3)(x+3); the (x−3) factor cancels with the denominator, leaving x+3, with restriction x≠3.
And one from the hard end
Find the restrictions on f(x)=1/(x−5).
Solution shown after you try it in practice mode.
Work through all 10, easiest to hardest
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