Question: Solve the given quadratic inequalities. Check each by displaying the solution on a calculator. |x 2 + x 4| < 2 [Use Eq. (17.2),

Solve the given quadratic inequalities. Check each by displaying the solution on a calculator.

|x² + x − 4| < 2

[Use Eq. (17.2), and then treat the resulting inequality as two inequalities of the form f (x) > −n and f (x) < n. The solution includes the values of x that satisfy both of the inequalities.]

Data from Eq. (17.2)

If |f(x)| < n, then −n < f (x) < n.

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We have x2 x 4 2 Using the identity from Eq 172 we get 2 x2 x 4 2 Adding 2 to each side we get 0 x2 ... View full answer

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