Answer:
1) 19
2) 34
Step-by-step explanation:
3x² + 7
1. x = 2
Substitute:
=3(2)² + 7
=3(4) + 7
=12 + 7
= 19
2. x = -3
=3(-3)² + 7
=3(9) + 7
=27 + 7
=34
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Answers & Comments
Answer:
1) 19
2) 34
Step-by-step explanation:
3x² + 7
1. x = 2
Substitute:
=3(2)² + 7
=3(4) + 7
=12 + 7
= 19
2. x = -3
Substitute:
=3(-3)² + 7
=3(9) + 7
=27 + 7
=34