Question

2X^2-45=5 ecuacion gracias

Answer 1

2X^2=5+45
2X^2=50
X^2=25
X=5 

:)

Answer 2

$2 x^{2} -45 = 5$

$2 x^{2} -45 - 5 = 0$

$2 x^{2} - 50 = 0$

$2 (x^{2} -25) = 0$

2(x+5)(x-5) = 0

x + 5 = 0      x-5 = 0
x = -5           x= 5

CS = (-5; 5)