Question

F(x) = 3x² + x
Find f(-5)

Answer 1

Explanation:

Substitute f(-5) into the function:

`f(-5)=3(5)^(2)+5`

Simplify Exponent:

`f(-5)=3(25)+5`

Multiply:

`f(-5)=75+5`

Add:

`f(-5)=80`