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12a-3b2, when a=9,b=4
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2 votes
12a-3b2, when a=9,b=4

User Toan Vo
by
8.5k points

2 Answers

4 votes

Answer:

60

Explanation:

Just substitute the value


12\cdot (9) - 3 \cdot(4)^2 = \\108 - 48 =60

User Sebastian Hernandez
by
8.3k points
3 votes

Answer:


12a - 3 {b}^(2) = 12(9) - 3 {(4)}^(2) \\ = 108 - 48 \\ = 60

User Davinel
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