Question

Me ayudan por favor. ​

Answer 1

Respuesta:

x² - 5x = 0

x (x - 5) = 0

x1 = 0 x2 = 0

x - 5 = 0

Comprobación:

(5)² - 5 (5) = 0

25 - 25 = 0

0 = 0

x² - 16 = 0

x² = 16

x = /16

x = 4

Comprobación:

(-4)²-16=0

16-16=0

0=0

x² - 49 = 0

x² = 49

x = /49

x = 24

Comprobación:

(-24.5)² - 49 = 0

49 - 49 = 0

0 = 0

2x² - 18 = 0

7

2x² = 18

x² = 18/2

x² = 9

x = /9

x = 3

Comprobación:

2(-3)² - 18 = 0

2(9) - 18 = 0

18 - 18 = 0

0 = 0

3x² - 11 = 0

3

3x² = 11

x² = 11/3

x² = 3

x = /3

x = 1

Comprobación:

3(1)² - 11 = 0

3.6(2) - 11 = 0

11 - 11 = 0

0 = 0