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24 votes
Evaluate the expression below when x is 4

3x^2 +5 =​

2 Answers

2 votes
3x^2+5
3(4)^2+5
*note*
(4)^2= 4•4=16
3(16)+5
48+5= 53
User Hselbie
by
3.3k points
2 votes

Answer:


\fbox {53}

Explanation:

⇒ 3x² + 5

Substitute x = 4 :

⇒ 3(4)² + 5

⇒ 3(16) + 5

⇒ 48 + 5

53

User MichM
by
4.3k points