Question

Evaluate the expression 9(5 - b) + 3b^2 + 5 for b = 5.

Answer 1

Answer:

Step-by-step explanation:

The given expression is:

`9(5-b)+3b^2+5`

To evaluate the expression at b = 5, substitute b = 5 into the expression:

`\begin{gathered} 9(5-5)+3(5^2)+5 \\ \\ 9(0)+3(25)+5 \\ \\ 0+75+5 \\ \\ =80 \end{gathered}`