Question

10x2-7x+1=0 (formula em delta)

Answer 1

10x²-7x+1=0
a=10
b=-7
c=1

∆=b²-4ac
∆=(-7)²-4.10.1
∆=49-40
∆=9
√∆=3

-b±√∆/2a

7±3/20

x'=7+3/20
x'=10/20
x'=1/2

X"=7-3/20
x"= 4/20
x"=1/5