Impara online a risolvere i problemi di completare il quadrato passo dopo passo. Solve the inequality 2x^2+7x+-5<0. Applicare la formula: ax^2+bx+c=a\left(x^2+\frac{b}{a}x+\frac{c}{a}\right), dove a=2, b=7 e c=-5. 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=2, b=\frac{7}{2}x e c=-\frac{5}{2}. Applicare la formula: a\left(x^2+b+c+f+g\right)=a\left(\left(x+\sqrt{f}sign\left(b\right)\right)^2+c+g\right), dove a=2, b=\frac{7}{2}x, c=-\frac{5}{2}, x^2+b=x^2+\frac{7}{2}x-\frac{5}{2}+\frac{49}{16}-\frac{49}{16}, f=\frac{49}{16} e g=-\frac{49}{16}. Applicare la formula: ax<b=x<\frac{b}{a}, dove a=2, b=0 e x=\left(x+\frac{7}{4}\right)^2-\frac{5}{2}-\frac{49}{16}.

Solve the inequality 2x^2+7x+-5<0