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b) 8(x-4)-5(x+4) = 8x-32-5x-20 = 3x-52
c)3(x²-7)+8(x²-7) = 3x= 3x²-21+8x²-56 = 11x²-77
d)7(x-3)-(x-3) = 7x-21-x+3 = 6x-18
b) 8x-32-5x-20= 3x-52
c)3x²- 21+8x²-56= 11x²-77
d)7x-21-x+3= 6x-18
Mam nadzieje ze dobrze ;P