SOLUTION: 9a+20(a^2-7a+7)

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Question 672335: 9a+20(a^2-7a+7)
Answer by ReadingBoosters(3246) About Me  (Show Source):
You can put this solution on YOUR website!
Distribute the 20
...
9a+%2B+20a%5E2+%2B+20%28-7a%29+%2B+20%287%29
...
9a+%2B+20a%5E2+-+140a+%2B+140
...
20a%5E2+-+131a+%2B+140
.....................
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