Question

I need help with 3b2-b b=5

Answer 1

`f(x) = 3 {b}^(2) - b \\ f(5) = 3 {(5)}^(2) - 5 \\ f(5) = 3(25) - 5 \\ f(5) =7 5 - 5 \\ \boxed{f(5) = 70}`

• f(5) = 70 is the right answer.