Answer:
Step-by-step explanation:
=-84x
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Answer: 5, -5
Step-by-step explanation:
There are only 2 square roots of 25: plus and minus 5.
Answer:
4
Step-by-step explanation:
because you subtract it.
Answer:
C
Step-by-step explanation:
The general rule for the quadratic function is

Use the data from the table:

We get the system of three equations:

Subtract these equations:

From the first equation

Substitute it into the second equation:

So,

The quadratic function is
