# If #f=5#, what is the value of #2f^2+8f-5#?

##### 2 Answers

May 30, 2017

#### Answer:

#### Explanation:

We can now substitute

May 30, 2017

#### Answer:

#### Explanation:

First, plug the number in.

Then, follow the order of operations.

There are no grouping symbols, so do exponents first.

**25**

Multiplication is next:

**50 **

Finally, addition and subtraction.

**85**