Respuesta :

chezzah

Answer:

x = 1.87

Step-by-step explanation:

2x^2 - 5 + 1 = 3

2x^2 = 3 + 5 - 1

2x^2 = 7

x^2 = 7/2

x = √3.5

x = 1.87082.....

x = 1.87 ( 3 significant figures )