1. Przekształc iloczyny na sumy
-5(-x+1)=
0,5(2a-4b+1)=
a)-5(-x+1)=5x-5
b)0,5(2a-4b+1) = a-2b+0,5
-5(-x+1)= 5x-5=5x+(-5)
0,5(2a-4b+1)=a-2b+0,5= a+(-2b)+0,5
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a)-5(-x+1)=5x-5
b)0,5(2a-4b+1) = a-2b+0,5
-5(-x+1)= 5x-5=5x+(-5)
0,5(2a-4b+1)=a-2b+0,5= a+(-2b)+0,5