Question

Using suitable identity expand (109)^2

​

Answer 1

Answer:

11,881

Step-by-step explanation:

(109)^2 = (100 + 9)^2

(a + b)^2 identitiy

100^2 + 9^2 + 2 * 100 * 9

10,000 + 81 + 1800

11,881.

Hope this helps you mate

Please do mark my answer as the brainliest