Question

Which inequality represents all values of x for which the product below is m . A.>_ 4 O B. >_ -1 C. <_4 D. >_0

Answer 1

⇒√(x-4).√(x+1)

solved these inequations:
(x-4)≥0 
x≥4        Sol₁:  x≥4
(x+1)≥0
x≥-1       Sol₂:  x≥-1

Therefore: solution: sol₁∩sol₂

Solution:  x≥4