Question: In this section we introduced methods of solving equations quadratic in form by substitution and solving equations involving radicals by raising each side of the

In this section we introduced methods of solving equations quadratic in form by substitution and solving equations involving radicals by raising each side of the equation to a power. Suppose we wish to solve x - √x - 12 = 0. We can solve this equation using either of the two methods. To see how both methods apply. Let u = √x and solve the equation by substitution.

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