Respuesta :

Answer:

Step-by-step explanation:

2x²-3=47

2x²=47+3

x²=50/2=25

x=±√25=±5

wegnerkolmp2741o

Answer:

x = ±5

Step-by-step explanation:

2x^2 - 3 = 47

Add 3 to each side

2x^2 - 3+3 = 47+3

2x^2 = 50

Divide each side by 2

2x^2 = 50/2

x^2 = 25

Take the square root of each side

sqrt(x^2) = sqrt(25)

x = ±5