Question

Please help urgent!!!

Answer 1

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