Question

срочно!!! тут легко ​

Answer 1

Ответ: 25y^4

5^2*(y^2)^2 = 25y^4

Answer 2

$\displaystyle\bf\\(5y^{2})^{2} =5^{2} \cdot (y^{2} )^{2} =\boxed{25y^{4} }$