Question

(d) Subtract 3a (a+b+c) - 2b (a - b + c) from 4c (-a+b+c​

Answer 1

Step-by-step explanation:

3a (a + b + c) − 2b (a − b + c)  

= 3a2 +3ab + 3ac − 2ba + 2b2 − 2bc

= 3a2 + 2b2 + ab + 3ac − 2bc 4c (− a + b + c)

= − 4ac + 4bc + 4c2 Subtracting these expressions, we obtain Therefore, the result is −3a2 −2b2 + 4c2 − ab + 6bc − 7ac.

hope it helps

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