Question

(10^2-10^2)÷(10^2-10^2)=2

Answer 1

$\frac{ {10}^{2} - 10^{2} }{ {10}^{2} - {10}^{2} } \\ = \frac{ {10}^{2} - {10}^{2} }{10(10 - 10)} \\ = \frac{(10 - 10)(10 + 10)}{10(10 - 10)} \\ = \frac{20}{10} = 2$