Question

If P= 4a4b-4c and Q = 7a +7b-c, find the value of 2P + 3Q.​

Answer 1

Answer: 29a+13b-11c is the answer

2P + 3Q=29a+13b-11c

Step-by-step explanation:

Given,

P= 4a-4b-4c and Q = 7a +7b-c

We have to find the solution of 2P + 3Q

=2(4a-4b-4c)+3(7a +7b-c)

Multiply 2 with each component in brackets 2(4a-4b-4c)

Multiply 3 with each component in brackets 3(7a +7b-c)

=8a-8b-8c+21a+21b-3c

=29a+13b-11c

Thus we get the solution 29a+13b-11c is the answer