Answer:
3b²-(b + 4) = 3(5)²-(5 + 4)
Step-by-step explanation:
The given expression is :
3b²-(b + 4)
We need to given an expression when the value of b is 5.
Put b = 5 in the above expression.
3b²-(b + 4) = 3(5)²-(5 + 4)
We can also solve it as follows :
= 3(25)-(9)
= 75-9
= 66
Hence, option (c) will be the answer.
