Respuestas
Respuesta:
perdon no descarga
Explicación paso a paso:
la hoja
Respuesta:
Espero te sirva uwu
Explicación paso a paso:
1. x² + 4x + 4 = 0
(x + 2)(x + 2) = 0
x + 2 = 0
∴ x = - 2
2. x² - 6x + 9 = 0
(x - 3)(x - 3) = 0
x - 3 = 0
∴ x = 3
3. m² + 8m + 16 = 0
(m + 4)(m + 4) = 0
m + 4 = 0
∴ m = - 4
4. a² - 14a + 49 = 0
(a - 7)(a - 7) = 0
a - 7 = 0
∴ a = 7
5. x² + 18x + 49 = 0
x² + 18x = - 49
x² + 18x + 81 = - 49 + 81
(x + 9)(x + 9) = 32
(x + 9)² = 32
x + 9 = ±√32
x = ±√32 - 9
∴ x = - 4√2 - 9 ∨ 4√2 - 9
6. 1 - 4x + 4x² = 0
4x² - 4x + 1 = 0
∴ x = 1/2
7. 9 + 6y + y² = 0
y² + 6y + 9 = 0
(y + 3)(y + 3) = 0
y + 3 = 0
∴ y = - 3
8. x² - 2x + 1 = 0
(x - 1)(x - 1) = 0
x - 1 = 0
∴ x = 1
9. 1 + 49a² - 14a = 0
49a² - 14a + 1 = 0
∴ y = 1/7
10. a² + 2ab + b² = 0
(a + b)(a + b) = 0
(a + b)² = 0
a = - b ∨ b = - a
∴ a² + 2ab + b² = (a + b)²