Question

completando al cuadrado x^2+30x+200=0​

Answer 1

x = -15 ±5

Explicación paso a paso:

x^2+30x=-200

x^2+30x+225=-200+225

x^2+30x+225=25

factorizamos

(x+15)^2 = 25

x+15 = ±√25

x = -15 ±✓25

x = -15 ±5