6. If P = 4a - 4b - 4c and Q = 7a+ 7b-c, find the value of 2P +3Q.
Answers
Answered by
19
Answer:
29a+13b-11c
Step-by-step explanation:
Given P=4a-4b-4c
Q=7a+7b-c
=2(4a-4b-4c)+3(7a+7b-c)
=8a-8b-8c+21a+21b-3c
=29a+13b-11c
Answered by
8
Answer:
P = 4a - 4b - 4c and Q = 7a+ 7b-c
value of 2P +3Q.
Step-by-step explanation:
2(4a - 4b - 4c) &3(7a+ 7b-c)
2P = (8a-8b-8c) & 3Q = (21a+21b-3c)
value of 2P +3Q.
8a-8b-8c + 21a+21b-3c
=29a+13b-11c
value of 2P +3Q is 29a+13b-11c
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