Answer:
3
Step-by-step explanation:
So we have the function:

To evaluate the value of f(-2), substitute -2 for x. Thus:

Square first:

Multiply:

Now, subtract:

So:

And we're done!
Answer:
the difference between x and y is x-y.
Step-by-step explanation:
Answer:
All real numbers are solutions.
Explanation:
−14(z − 5) = −14z + 70
[ Step 1: Simplify both sides of the equation ]
−14(z − 5) = −14z + 70
(−14)(z) + (−14)(−5) = −14z + 70 (Distribute)
−14z + 70 = −14z + 70
[ Step 2: Add 14z to both sides ]
−14z + 70 + 14z = −14z + 70 + 14z
70 = 70
[ Step 3: Subtract 70 from both sides ]
70 − 70 = 70 − 70
0 = 0
Therefore, all real numbers are solutions.