Question

find the value of expression ? a²-ab+2c²,where a=2,b=2 and c=1​

Answer 1

Step-by-step explanation:

2^2-2×2+2×1^2

4-4+2

2

Answer 2

Answer:

ans:2

Step-by-step explanation:

(2^2)-(2*2)+(2*1*1)

=4-4+2

=6-4

=2