5x = x^2 + 4
x^2 - 5x + 4 = 0
(x - 4)(x - 1) = 0
x = 4, 1
(x + 6)^2 = 100
x + 6 = +/1 sqrt100
x + 6 = +/- 10
x = 4, -16
Answer:151500
Step-by-step explanation:the is the answer
Step-by-step explanation:
what are you trying to find???
It will take 45 weeks.25 weeks to gain back the 500 dollor he spent and 20 to make 400 dollor from it