Question

puteti sa ma ajutati ? urgenttt dau 40 de puncte
doar 2.

Answer 1

x² + 2xy + y² = (x + y)²

x² + 4x + 4 = (x + 2)²

x² + 10ax + 25y² = (x + 5y)²

36y² + 12y + 1 = (6y + 1)²

4x² + 12x + 9 = (2x + 3)²

36a² + 60ab + 25b² = (6a + 5b)²

Answer 2

Răspuns:

Explicație pas cu pas:

x^2 - 4xy + 4y^2 = (x - 2y)^2

__________

25a^2 - 20a + 4 = (5a - 2)^2

___________

a^2 - 18ac +81c^2 = (a - 9c)^2

______________

x^2 - 6x + 9 = (x - 3)^2

______________

49x^2 - 28xy + 4y^2 = (7x - 2y)^2

______________

64 - 144x + 81x^2 = (8 - 9x)^2