Question

resolver ejercicio 2 y 3​

Answer 1

Respuesta:

Explicación paso a paso:

4X² - 100 = 0 factorizar diferencia de cuadrados perfectos

(2X - 10 ) (2X + 10 )

igualas a 0

2X - 10 = 0  2X = 10  X = 10/2  X = 5

2X + 10 = 0  2X = -10  X = -10/2  X = -5

X= 5

X= -5

-3X² + 9 = 0

-3X² = -9

 X² = -9 / -3

 X² = 3

X = √3

2X² - 6X = 0   FACTOR COMUN

2X ( X - 3 ) = 0

2X = 0  X = 0/2  X = 0

X - 3 = 0  X = 3

X=0

X=3

X² - X - 2 = 0 PRODUCTOS NOTABLES

(X  - 2) (X  + 1) = 0

X - 2 = 0   X = 2

X + 1 = 0   X = -1

X=2

X=-1

4X² - 16X + 12 = 0 PRODUCTOS NOTABLES

(2X  -  2  )  (2X -  6  )   = 0

2X -2 = 0   2X = 2  X = 2/2  X = 1

2X -6 = 0   2X = 6   X = 6/2  X = 3

X=1

X=3