Question

X²/2+3x=8 ajuda equação do 2º grau

Answer 1

x^2/2+3x=8》x^2+3x=8(2)》x^2-3x=16》x^2-3x-16=0》a=1 , b=3 , c=-16》 x=-3+,-\/3^2-4(1)(-16)/2(1)》 x=-3+,-\/9-4(-16)/2》x=-3+,-\/9+64/2》 x=-3+,-\/73/2》x=-3+,-8,54/2. x1=-3+8,54/2》x1=5,54/2》x1=2,27. x2=-3-8,54/2》x2=11,54/2》x2=-5,77