Question

Gente me ajuda pfvvv

Usando a fórmula de bhaskara resolva:

-x ²+ 10x -24 =0

Answer 1

Resposta:

Explicação passo-a-passo:

$Aplicando~a~f\'{o}rmula~de~Bhaskara~para~-x^{2}+10x-24=0~~\\e~comparando~com~(a)x^{2}+(b)x+(c)=0,~temos~a=-1{;}~b=10~e~c=-24\\\\\Delta=(b)^{2}-4(a)(c)=(10)^{2}-4(-1)(-24)=100-(96)=4\\\\x^{'}=\frac{-(b)-\sqrt{\Delta}}{2(a)}=\frac{-(10)-\sqrt{4}}{2(-1)}=\frac{-10-2}{-2}=\frac{-12}{-2}=6\\\\x^{''}=\frac{-(b)+\sqrt{\Delta}}{2(a)}=\frac{-(10)+\sqrt{4}}{2(-1)}=\frac{-10+2}{-2}=\frac{-8}{-2}=4\\\\S=\{6,~4\}$