Question

pueden ayudarme?,por favor es urgente​

Answer 1

Respuesta:

2x² - 32 = 0, x = 4

12x² - 12 = 0, x = 1

9x² - 81 = 0, x = 3

10x² + 25x, x = - 2,5

4x² - 16x = 0, x = 4

7x² - 28x = 0, x = 4

Explicación paso a paso:

2x² - 32 = 0

2x² = 32

x² = 32 / 2

x² = 16 = 4²

x = 4

12x² - 12 = 0

12x² = 12

x² = 12 / 12

x² = 1 = 1²

x = 1

9x² - 81 = 0

9x² = 81

x² = 81 / 9

x² = 9 = 3²

x = 3

10x² + 25x = 0

5x ( 2x + 5 ) = 0

2x + 5 = 0 / 5x

2x + 5 = 0

2x = - 5

x = - 5 / 2

x = - 2,5

4x² - 16x = 0

4x ( 4x - 4 ) = 0

4x - 4 = 0 / 4x

4x - 4 = 0

4x = 4

x = 4 / 4

x = 1

7x² - 28x = 0

7x ( x - 4 ) = 0

x - 4 = 0 / 7x

x - 4 = 0

x = 4