Solve the inequality |x| < 5. {x|-5 < x < 5} {x|x < -5 ∪ x > 5} {x|x -5 ∪ x < 5}

ANSWER

The correct answer is A

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EXPLANATION

This implies that

We solve the compound inequality to obtain,

Remember that, dividing through by negative 1 reverses the inequality sign

The solution set is

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because linear equations are a lot simpler than quadratics equations, and linear equations formula is a lot easier to memorize. that's why i think they're harder.