Question

2x² = 98
me ajudem com essa pergunta por favor

Answer 1

$\mathtt{2x^2=98} \\ \mathtt{x^2=98\div2} \\ \mathtt{x^2=49} \\ \mathtt{x = +-\sqrt{49}} \\ \mathtt{x = +-7} \\ \\ \\ \boxed{\boxed{\mathtt{Resposta: x'=-7~~~~x'' = 7}}}$