Question

evaluate the following 6a³- 5b²+2c²-3a²bc if a=1 ,b=2and c=-1​

Answer 1

The given a= 1,b= 2 , c= -1

$6 {a}^{3} - 5 {b}^{2} + 2 {c}^{2} - 3 {a}^{2} bc \\ 6 \times {1}^{3} - 5 \times {2}^{2} + 2 \times { (- 1)}^{2} - 3 \times {1}^{2} \times 2 \times - 1 \\ 6 - 20 + 2 + 6 \\ = - 6nswer$

Answer 2

thanks mate it helps me very well and I love it