Question

Find the value if a=1,b=2,c=-1 Qno. 3a²+b²+ c²-4ab-a²+3ab-5ac+4ab-bc​

Answer 1

Answer:

Solve the expression first then add the values in.

Upon solving the equation you get the answer: 2a^{2}+3ab-5ac+b^{2}-bc+c^{2}

Now add the values and receive the final answer.

Hence your answer is 18.