Answer:
6
Step-by-step explanation:
[tex]3x^2 + y\\\\3(1)^2 + (-3)\\\\3^2 + (-3)\\\\9 - 3\\\\= 6[/tex]
0
3x^2 + y
3(1)² + (-3)
3(1) - 3
3 - 3
= 0
