PRECISO DE AJUDA , MATEMATICA?

Comments

• maria-descartes

  June 2021

  Veja:

  2x²-3x+1=0

  x=[3+-√9-8]/4

  x=[3+-√1]/4

  x=[3+-1]/4

  x'=[3+1]/4=4/4=1

  x"=[3-1]/4=2/4=1/2
• isabelle-morris_60c208a103675

  June 2021

  Δ=b²-4ac

  Δ=(-3)²-4*2*1

  Δ= 9-8

  Δ= 1

  x= -b±√Δ/2a

  x= -(-3)±√1/2*2

  x= 3±1/4

  x´=3+1/4= 4/4= 1

  x´´=3-1/4= 2/4= 1/2

  Fácil!!!!!!!