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4a-2b+10-2(a+5)+(3-b)=
-2(-3a-4)+(a-5)(2a-8)=
4a-2b+10-2(a+5)+(3-b)=4a-2b+10-2a-10+3-b=2a+3-3b
-2(-3a-4)+(a-5)(2a-8)=6a+8+2-8a-10a+40=48+2-12a
4a-2b+10-2(a+5)+(3-b)=4a-2b+10-2a-10+3-b=2a-3b+3
-2(-3a-4)+(a-5)(2a-8)=6a+8+2a2-8a-10a+40=2a2-12a+48
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4a-2b+10-2(a+5)+(3-b)=4a-2b+10-2a-10+3-b=2a+3-3b
-2(-3a-4)+(a-5)(2a-8)=6a+8+2-8a-10a+40=48+2-12a
4a-2b+10-2(a+5)+(3-b)=4a-2b+10-2a-10+3-b=2a-3b+3
-2(-3a-4)+(a-5)(2a-8)=6a+8+2a2-8a-10a+40=2a2-12a+48