opuść wyrazy i zredukuj wyrazy podobne (5a-11b+4)+(7a-8)-(7b-8)= (a3-ab+5)-(3a3-4)-(7a3-8ab)+2ab-7)=

opuść wyrazy i zredukuj wyrazy podobne (5a-11b+4)+(7a-8)-(7b-8)= 5a-11b+4+7a-8-7b+8= 12a-18b+12 (a3-ab+5)-(3a3-4)-(7a3-8ab)+2ab-7)=a³-ab+5-3a³+4-7a³+8ab+2ab-7= -9a³+9ab+2

(5a-11b+4)+(7a-8)-(7b-8)=5a-11b+4+7a-8-7b+8= 12a-18b+12 (a3-ab+5)-(3a3-4)-(7a3-8ab+2ab-7)= a3-ab+5-3a3+4-7a3+8ab-2ab+7=-9a3+5ab+16

5a-11b+4+7a-8-7b+8=12a-18b+4 a3-ab+5-3a3+4-7a3+8ab+2ab-7= -9a3+2+9ab