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b) (x-3y)+(-2x-8y)=x-3y-2x-8y=-x-11y
c) (4m+3n)-(2m-7n+3)=4m+3n-2m+7n-3=2m+10n-3
d) (a-2b)-(4a+5b)=a-2b-4a-b= -3a-3b
mam nadzieje ze pomoglam i licze na naj;)
b)=x-3y-2x-8y=-x-5y
c)=4m+3n-2m+7n-3=2m+10n-3
d)=a-2b-4a-5b=-3a-7b
b)2x(kwadrat)+14xy+8y(kwadrat)
c)2m+10n-3
d)-3a-7b