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Mathematics, 20.01.2020 19:31 NetherisIsTheQueen

Worth 30 points give the whole answers.
1. (2r + 9)(2r-9) + (2r - 9)^2

2. 12 - 5 [ ( a^3 + a^2 - a ) / a] + 5a

3. x^4 + 7 is divided by x - 3. long division

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Worth 30 points give the whole answers.
1. (2r + 9)(2r-9) + (2r - 9)^2

2. 12 - 5...
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