Question

3. За – 4b + 4с, 2а + 3b – 8с, а — 6b+c​

Answer 1

Answer:

After adding we get:

 (3a−4b+4c)+(2a+3b−8c)+(a−6b+c)

=3a+2a+a−4b+3b−6b+4c−8c+c

=6a−7b−3c