Question

1*1+23*23+1 please find the answer​

Answer 1

Answer:

$= 1 *1 + 23 * 23 + 1$

$= (1)^{2} + (23)^{2} + 1$

using $a^{2} + b^{2} = (a +b) ^{2} - 2ab$

$= (1 + 23)^{2} - 2(23)(1) + 1$

$= (24)^{2} - 26 + 1$

$= 576 - 26 + 1$

$= 551$