Question 1200167
<pre>
I know the chosen topic has nothing to do with this but I couldn’t find the topic for this problem.

Use polynomial identities and number properties to perform the calculation.

109^2
{{{highlight_green(matrix(1,11, highlight(109^2),"=", (100 + 9)^2, "=", (100 + 9)(100 + 9), "=", 100(100) + 2(900) + 81, "=", "10,000 + 1,800 + 81", "=", highlight("11,881")))}}}</pre>