Question

X^2+2x=34 cuánto vale x ?

Answer 1

x=32 si no me equivoco

porque

x^2-2+2x=34-2

x+2x=32

x-2x=2x-2x=32

-x=32 /^-1

X=32

Answer 2

x*2+2x=34

(x+2)(x-2)+2x=34

x2-4+2x=34

x2+2x=36

x2+2x-36=0

x =(2-√148)/2=1-√ 37 = -5.083

x =(2+√148)/2=1+√ 37 = 7.083

gracias