Question

(210/10)2 - (21/10)2

Answer 1

${( \frac{210}{10}) }^{2} - {( \frac{21}{10} )}^{2} \\ = {21}^{2} - {(2.1)}^{2} \\ = 441 - 4.41 \\ = 436.59$

✨ hope it helps✨✨

Answer 2

I hope that it will be right