Odpowiedź:
x²+5x+4=0
a=1, b=5, c=4
∆=b²-4ac =25-16=9
√∆=√9=3
[tex]x1 = \frac{ - b - \sqrt{∆} }{2a} = \frac{ - 5 - 3}{2} = \frac{ - 8}{2} = - 4[/tex]
[tex]x2 = \frac{ - b + \sqrt{∆} }{2a} = \frac{ - 5 + 3}{2} = \frac{ - 2}{2} = - 1[/tex]
" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2024 KUDO.TIPS - All rights reserved.
Odpowiedź:
x²+5x+4=0
a=1, b=5, c=4
∆=b²-4ac =25-16=9
√∆=√9=3
[tex]x1 = \frac{ - b - \sqrt{∆} }{2a} = \frac{ - 5 - 3}{2} = \frac{ - 8}{2} = - 4[/tex]
[tex]x2 = \frac{ - b + \sqrt{∆} }{2a} = \frac{ - 5 + 3}{2} = \frac{ - 2}{2} = - 1[/tex]