I think you may mean:
12 a - 3 b^2
12*9 - 3 * 4^2
108 - 3 * 16
108 - 48
60
12a-3b2. When a=9 b=4. Please explain steps
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please i need help with this question im in 6th grade,can u help me with it
11(d-c)+3(c+d) when c=6 d= 9
60
69
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