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

User RightmireM
by
4.8k points

2 Answers

1 vote

Explanation:

Write out equation

12a-3b2

Sub in variables and add needed signs

12×9-3×4×2

Solve multiplication

108-24

Finally, subtract

84

User Paula Fleck
by
4.9k points
4 votes

Answer:

84

Explanation:

substitute in the numbers so its 12x9 - 3x4x2

108 - 24 = 84

User Lauraann
by
4.7k points
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