Impara online a risolvere i problemi di passo dopo passo. Solve the inequality t^2+19t+-20<0. Applicare la formula: x+a+b<c=x+b<c-a, dove a=-20, b=19t, c=0 e x=t^2. Applicare la formula: a+b=a+b, dove a=0, b=20 e a+b=0+20. Applicare la formula: x^2+bx=x^2+bx+\left(\frac{b}{2}\right)^2-\left(\frac{b}{2}\right)^2, dove b=19, bx=19t, x=t, x^2+bx=t^2+19t e x^2=t^2. Applicare la formula: x^2+bx+f+g=\left(x+\sqrt{f}sign\left(b\right)\right)^2+g, dove b=19, bx=19t, f=\frac{361}{4}, g=- \frac{361}{4}, x=t, x^2+bx=t^2+19t+\frac{361}{4}- \frac{361}{4} e x^2=t^2.

Solve the inequality t^2+19t+-20<0