Question

10^2 - 9^2 please answer to this question.......​

Answer 1

Answer:

$10 ^{2} - 9 ^{2} \\ \\ squar \: of \: 10 = 100 \\ \\ and \: squar \: of \: 9= 81 \\ \\ 10 ^{2} = 100 \\ 9 ^{2} = 81 \\ \\ 100 - 81 \\ \\ 19$

Answer 2

Answer:

${10}^{2} - {9}^{2}$

$= (10 + 9)(10 - 9)$

$= (19)(1)$

$= 19 \times 1$

Hope this helps.

Thanks.