Quadratic Functions, Equations and Inequalities - Quadratic Inequalities

Quadratic Functions, Equations and Inequalities - Quadratic Inequalities

IP 3

Solve the following quadratic inequalities.

\(2{{x}^{2}}+5x-12>0\)
\((3+x)(7-5x)<17\)
\(\left( 2x+1 \right)\left( 3x-1 \right)\le 14\)

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Answer:(a) x < -4 or x > 3/2; (b) x < -2 or x > 2/5; (c) -5/3 <= x <= 3/2.

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