Question

find a2 where a =[ 4 2
-1 1]​

Answer 1

Answer:

31

Step-by-step explanation:

a=42-11=a=31 its you answer

Answer 2

Answer:

if multiply a by 2 answer is 62, if square a answer is 961

Step-by-step explanation:

42 - 11 = 31

a = 31

31^2 = 961 / 31*2 = 62

i gave to answers because in the question you wrote it is not clear that do we need to find the square or multply it be 2