Wykonaj mnożenie i zredukuj wyrazy podobne
x(b+1)=x
-a(3-b)+3a
-a(a-5b+7)ab
ma wyjść
2x+xb
ab
-a²+4ab-7a
x(b+1)+x=xb+x+x=2x+xb
-a(3-b)+3a= -3a+ab+3a =ab
-a(a-5b+7)ab=-a²+5ab-7a
xb+x=x
xb+2x
-3a+ab+3a=0+ab=ab
-a2+5ab-7a-ab=-a2+4ab-7a
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x(b+1)+x=xb+x+x=2x+xb
-a(3-b)+3a= -3a+ab+3a =ab
-a(a-5b+7)ab=-a²+5ab-7a
xb+x=x
xb+2x
-3a+ab+3a=0+ab=ab
-a2+5ab-7a-ab=-a2+4ab-7a