rozwiaz
(3x-2)(4x+5)+2(x+3y)
(3x-2)(4x+5) +2(x + 3y)= 12 x^2 + 15x - 8x - 10 +2x +6y = 12x^2 +9x -10 +6y
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(3x-2)(4x+5) +2(x + 3y)= 12 x^2 + 15x - 8x - 10 +2x +6y = 12x^2 +9x -10 +6y