Jimmy is trying to figure out how many pennies are in his bank. He asked his mother to help him figure out the total. He tells h
er to let the amount in the bank equal 21x^3+18x^2+9x and each penny equal 3x. Can you help them figure out how many pennies are in the bank?
1 answer:
The answer is <span><span> 3x3-18x2-9x+132=0</span> and</span>
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