X+2 < 7
Subtract both sides by 2
x < 5
Any value where x was less than 5 would be correct.
They are all the x points on the graph like the range is the y
Answer:
x = -4
Step-by-step explanation:
f(x) = x² - 16
This is the difference of squares
which factors as
f(x) = (x - 4)(x + 4)
Therefor the negative zero is
x = -4
the answer to your equation is
n=40
