Question

My answer is coming 84.. But actual answer will be 42 how.. Pls help

Answer 1

-84

Explanation:

To simplify the expression 20^2 - 22^2, we'll first square both 20 and 22:

20^2 = 20 * 20 = 400

22^2 = 22 * 22 = 484

Now, we can substitute these values back into the original expression:

400 - 484 = -84

So 20^2 - 22^2 = -84.

Answer 2

that answer should be wrong?