Lemma
EasyPolynomials
OpenStax, Algebra and Trigonometry 2e §5.7 Inverses and Radical Functions · Try It 2 · Algebra · Polynomials

Inverses and Radical Functions · Try It 2

Find the inverse function of

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OpenStax, Algebra and Trigonometry 2e · §5.7 Inverses and Radical Functions · Try It 2

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Checked against the answer in OpenStax, Algebra and Trigonometry 2e.