Question

А)25у²-а²б)с²+4вс+4с²​

Answer 1

а) 25у²-а

5²у²-а²

(5у)²-а²

(5у-а)*(5у+а).

б)с²+4вс+4а²

5с²+4вс

с*(5с+4в).

* это умножение

Answer 2

To simplify the given expressions, let's take them one by one:

А) 25у² - а²

This expression is a difference of squares, which means it can be factored as follows:

25у² - а² = (5у + а)(5у - а)

б) с² + 4вс + 4с²

This is a trinomial expression. To factor it, we look for two binomials whose product gives us the original expression. The expression can be factored as follows:

с² + 4вс + 4с² = (с + 2в)²

So the simplified expressions are:

А) 25у² - а² = (5у + а)(5у - а) б) с² + 4вс + 4с² = (с + 2в)²