Rational exponent — Algebra I · Grade 9 or accelerated Grade 8, what it means and where it is taught
x1/2 = √x and xm/n = √[n]xm.
Taught in Algebra I · Grade 9 or accelerated Grade 8.
Where it is taught
Practise this idea
3 questions in the course bank use Rational exponent, in Radicals & Rational Exponents, Radical Functions & Equations.
Problem 1
Write √x using a rational exponent.
Worked answer
x^(1/2)
x1/2
Problem 2
Write √[3]x5 using a rational exponent.
Worked answer
x^(5/3)
x5/3
Problem 3
Write √[5]x3 using a rational exponent.
Worked answer
x^(3/5)
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