Question

Решите плиз
x^2+4x−60=0

Answer 1

x^2+4x-60=0
D=16+240=256=16^2
x1=(-4+16)/2=6
x2=(-4-16)/2=-10

Answer 2

D= 16-4*(-60)= 256
x1= (-4+16)/2= 6
x2= (-4-16)/2= -10
Ответ: x=6; x=-10 .