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Answer:
b) x > -1 or x < -2.5
Explanation:
|4x + 7| > 3
so
(4x + 7) > 3 or
-(4x + 7) > 3
⇒ (4x + 7) > 3 or
(4x + 7) < -3
⇒ 4x > 3 - 7 or
4x < -3 - 7
⇒ 4x > -4 or
4x < -10
⇒ x > -4/4 or
x < -10/4
⇒ x > -1 or
x < -2.5
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