Question

RESOLVA AS EQUAÇOES PELA FORMULA RESOLUTIVA!

B) x²-5x-24 = 0

Answer 1

Olá Winicius

x² - 5x - 24 = 0

delta
d² = 25 + 96 = 121
d = 11

x1 = (5 + 11)/2 = 16/2 = 8
x2 = (5 - 11)/2 = -6/2 = -3

.

Answer 2

x²-5x-24=0

a=x²
b=-5x
c=-24

x=-b+/-√b²-4ac
         2a

x=-(-5)+/-√(-5)²-4·1·(-24)
                 2·1
x=5+/-√25-(-96)
           2
x=5+/-√25+96
          2
x=5+/-√121
       2
x=5+/-11
      2
x1=5+11=16=8
        2       2
x2=5-11 =-6=-3
        2       2