Question

Решите уравнение x^2-х=16

Answer 1

х²-х=16
х²-х-16=0
D=b²-4ac=1+64=65
$x_1= \frac{-b- \sqrt{D}}{2a}= \frac{1+ \sqrt{65}}{2}\\ x_2= \frac{-b+ \sqrt{D}}{2a}= \frac{1+ \sqrt{65}}{2}$

Answer 2

x²-x=16
x²-x-16=0
a=1 b=-1 c=-16
D=b²-4ac=1+64=65
x=(-b±✓D)/2a=(1±✓65)/2=(1±8.06)/2
x1=9.06/2=4.53
x2=-7.06/2=3.53