Answer:
x ∈ (- oo ; + 3)
Step-by-step explanation:
4x - 7 < 5
4x < 5 + 7
4x < 12
x < 12 : 4
x < 3
Answer: M = - 2/3
Not sure this should be the answer tho
discriminant = (-13)² - 4·2·15 = 49
discriminant > 0 so there are two real roots
As attached
