Curriculum
Course: Pure Mathematics — Second Secondary
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Curriculum

Pure Mathematics — Second Secondary

Text lesson

Rational Exponents

Pure Mathematics — Second Secondary

Rational Exponents

Common mistakes

Common mistakes

Key points
Distributing the exponent over a sum(a + b)m/n is not equal to am/n + bm/n.
Confusing a negative exponent with a negative number8−1/3 = 1/2, not −2.
Misreading the fraction82/3 means (∛8)2 = 4, not 82 ÷ 3.
Using root laws on negative numbers carelesslythe square root of a negative number is not a real number.
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