doprowadz do najprostszej postaci ; a) 4(a-3b-2c)+2(3a-3b+4c)-2(2a-b-c)= b) -3(2a+2b+3c)-2(4a+3b-2c)= c) -5(a+2b-2c)-2(3a+2b-4c)-2(a-b-2c)= proszę na dzisiaj
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a) 4(a-3b-2c)+2(3a-3b+4c)-2(2a-b-c)=4a-12b-8c+6a-6b+8c-4a+2b+2c=6a-16b+2c
b) -3(2a+2b+3c)-2(4a+3b-2c)= -6a-6b-9c-8a-6b+6c= -14a-12b-3c
c) -5(a+2b-2c)-2(3a+2b-4c)-2(a-b-2c)= -5a-10b+10c-6a-4b+8c-2a+2b+4c= -13a-12b+22c
a)4a-12b-8c+6a-6b+8c-4a+2b+2c=6a-16b+2c
b) -6a-6b-9c-8a-6b+6c= -14a-12b-3c
c) -5a-10b+10c-6a-4b+8c-2a+2b+4c= -13a-12b+22c