Question

A - 2b піднести до квадрату

Answer 1

A^2-4Ab+4b^2 разница квадратов

Answer 2

To square the expression A - 2b, you can use the formula:

(a - b)^2 = a^2 - 2ab + b^2

Using this formula, we have:

(A - 2b)^2 = A^2 - 2(A)(2b) + (2b)^2 = A^2 - 4Ab + 4b^2

Therefore, (A - 2b) squared is equal to A squared minus 4Ab plus 4b squared.