Photos 4 14 4X 3X 6X

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4 14 4x 3x 6x. 3x-12-x=-x+2x-12. (X−3) 2 =(X+12) 2 .. X6=(x+6)3. X*3-12=X*2.
3x-12-x=-x+2x-12. (X−3) 2 =(X+12) 2 .. X6=(x+6)3. X*3-12=X*2.

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