Question

1. (2x – 3y)^2 = (2x)^2 – 2 * 2x * 3y + (3y)^2 = 4x^2 – 12xy + 9y^2
2. (5y + 1)(1 - 5y) - (1 + 5y)^2
Please fast

Answer 1

•Ask Correctly How can there be 3 equals to in an equation ?

•And Also Put Question Along with it !