Impara online a risolvere i problemi di passo dopo passo. Solve the inequality 2+x-x^2<=0. Applicare la formula: ax^2+x+c=a\left(x^2+\frac{1}{a}x+\frac{c}{a}\right), dove a=-1 e c=2. Applicare la formula: a\left(x^2+b+c\right)=a\left(x^2+b+c+\left(\frac{coef\left(b\right)}{2}\right)^2-\left(\frac{coef\left(b\right)}{2}\right)^2\right), dove a=-1, b=\frac{1}{-1}x e c=-2. Applicare la formula: a\left(x^2+bx+c+f+g\right)=a\left(\left(x+\sqrt{f}sign\left(b\right)\right)^2+c+g\right), dove a=-1, b=-1, c=-2, bx=-x, f=\frac{1}{4}, g=-\frac{1}{4} e x^2+bx=x^2-x-2+\frac{1}{4}-\frac{1}{4}. Applicare la formula: \frac{a}{b}+c=\frac{a+cb}{b}, dove a/b+c=\left(x- \frac{1}{2}\right)^2-2-\frac{1}{4}, a=-1, b=4, c=-2 e a/b=-\frac{1}{4}.

Solve the inequality 2+x-x^2<=0