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14-09-2020
Mathematics

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Evaluate each expression. If a=12, b=9, and c=............. 4a+2b-c to the 2nd power

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14-09-2020

Step-by-step explanation:

Substitute in a and b

4(12) + 2(9) - c^2= 0

48 + 18 -c^2=0

66-c^2 = 0

+c^2= +c^2

66 = c^2

sqr of 66 = c

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