Question

Tarea
P(x) = 2a-b+3c
q(x) = 5a-2b+7c
r(x) = -a-b-c
Resolver
1) p+q
2) q+r
3) p+r
4) p-q
5) q-r
6) q-r

Answer 1

Explicación paso a paso:

p+q

2a-b+3c + 5a-2b+7c

7a-3b+10c

q+r

5a-2b+7c -a-b-c

4a-3b+6c

p+r

2a-b+3c -a-b-c

a-2b+2c

p-q

2a-b+3c- (5a-2b+7c)

2a-b+3c-5a+2b-7c

-3b+b-4c

q-r

5a-2b+7c - (-a-b-c)

5a-2b+7c +a+b+c

6a-b+8c