Question

x²-15x+26=0 pfv me ajudem usando a formula de baskara ?

Answer 1

a=1
b=-15
c=26

Δ=b²-4ac
Δ=(-15)²-4.1.26
Δ=225-104
Δ=121

-b+-√Δ
   2a
-(-15)+-√121
      2.1

15+-11=
    2

x'=15+11=26/2=13
         2

x''=15-11=4/2=2
        2

x'=13
x''=2

:)