Question

Simplify (3n – 2m)2 = ? a. 6n2 – 12mn – 4m2 b. 9n2 – 12mn – 4m2 c. 9n2 12mn 4m2 d. 9n2 – 12mn 4m2

Answer 1

If you would like to simplify (3n - 2m)^2, you can do this using the following steps:

(3n - 2m)^2 = 3^2 * n^2 - 3 * 2 * 2 * n * m + 2^2 * m^2 = 9n^2 - 12nm + 4m^2

The correct result would be d. 9n^2 - 12nm + 4m^2.