420,030 views
16 votes
16 votes
What does 9a^2 + 2b^2 if a=4 and b=7?

User Jfriedman
by
2.1k points

2 Answers

9 votes
9 votes

Answer:

242

Explanation:

Given

9a² + 2b² ← substitute a = 4 and b = 7

= 9(4)² + 2(7)²

= 9(16) + 2(49)

= 144 + 98

= 242

User Oldergod
by
2.8k points
24 votes
24 votes

Answer:

242

Explanation:

User GregoryBrad
by
2.9k points