October 2018 1 34 Report

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2(3-x)(1+x) - (1-2x)^2 + (-2-x)^2
9^2 - (1-x)(2+x) - 3(5-x)^2
(m+1)^2 - (2m - 2)^2 + (2m +3)^2 - (4m - 4)^2
2(a-b)^2 - 2(a+b)^2 + 4(a+b)(a-b)

(3x + 1)(3x + 1) + (1 + 5x)(1 - 5x)


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