Answer:
Step-by-step explanation:
If (x+8) is a factor of f(x), then for some expression p, we have ...
f(x) = (x+8)p
Evaluated at x=-8, this gives ...
f(-8) = (-8+8)p = 0p
f(-8) = 0 . . . . must be true
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Similarly, f(8) = (8+8)p = 16p. This may or may not be zero, depending on the factors of p. The only offered statement that <em>must</em> be true is the one shown above.
You can tell that a fraction is a unit fraction when it is over a unit of one. This is also known as unit rate.
10 is the missing number.
If n = 5, then 9n = 45
45 - 15 = 30, which is the same thing as 6n
