simplify
(2x - 3) (5 x + 2) + (3 x - 7) ( 4 x - 1 )
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(2x - 3) (5 x + 2) + (3 x - 7) ( 4 x - 1 )
2x(5x+2)-3(5x+2)+3x(4x-1)-7(4x-1)
10x^2+4x-15x-6+12x^2-3x-28x+7
22x^2-11x-31x+1
22x^2-42x+1
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