If #f=5#, what is the value of #2f^2+8f-5#?
2 Answers
May 30, 2017
Explanation:
We can now substitute
May 30, 2017
Explanation:
First, plug the number in.
Then, follow the order of operations.
There are no grouping symbols, so do exponents first.
Multiplication is next:
50
Finally, addition and subtraction.
85