Evaluate r(x) = −0.21x^3 + x^2 − 8.1x − 3 for x = −1 and x = 2.
1 answer:
You might be interested in
For this case we have that by definition, the area of a square is given by:
Where:
l: It's the side of the square
We have, according to the statement data, that:
Then, the area is given by:
By definition of power properties we have to:
So:
Answer:
The area of the square is: