Question

Complete the following :
5×5-4×4=2×5-1 6×6-5×5=2×6-1 7×7-6×6=2×7-1

Answer 1

Answer:

9 = -111 = -143 = 13 is the answer

Answer 2

Answer:

25-16=10-96-25=18-84 -36=14-1

9=10-125=18-100=13

9=-115=-82=13