Question

5x²-x-3=0???
Alguem Pode Me Ajuda???

Answer 1

5x² - x - 3= 0

delta= b²-4.a.c

a= 5, b= -1, c= -3

delta= (-1)²- 4.5.(-3)
delta= 1 + 60
delta= 61

x= -b ± √61/2.5

x= -(-1) ± √61/10

x1= ( 1 + √61)/10

x2= ( 1 - √61)/10

s={ ( 1 + √61)/10, ( 1 - √61)/10 }