Question

11 ×13 = (______)2-(1)2​

Answer 1

Answer:

$11 \times 13 = {12}^{2} - {1}^{2}$

Answer 2

$11 \times 13 = {12}^{2} - {1}^{2} \\ 143 = 144 - 1 \\ 143 = 143$