Question

dados polinômios P= a+b+c; Q = a-b-c; R= a+b-c a) P+Q+R? b) p+q-r? c) p-q+r? d)p-q-r ?

Answer 1

A) P+Q+R= (a+b+c)+(a-b-c)+(a+b-c)=a+b+c+a-b-c+a+b-c=3a+b-c
B) P+Q-R= (a+b+c)+(a-b-c)-(a+b-c)=a+b+c+a-b-c-a-b+c=a-b+c
C) P-Q+R= (a+b+c)-(a-b-c)+(a+b-c)=a+b+c-a+b+c+a+b-c=a+3b+c
D) P-Q-R= (a+b+c)-(a-b-c)-(a+b-c)=a+b+c-a+b+c-a-b+c=-a+b+3c