Impara online a risolvere i problemi di passo dopo passo. 3q^2-12q+20. Applicare la formula: ax^2+bx+c=a\left(x^2+\frac{b}{a}x+\frac{c}{a}\right), dove a=3, b=-12, c=20 e x=q. 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=3, b=-4q, c=\frac{20}{3} e x=q. 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=3, b=-4q, c=\frac{20}{3}, x^2+b=q^2-4q+\frac{20}{3}+4-4, f=4, g=-4, x=q e x^2=q^2. Applicare la formula: \frac{a}{b}+c=\frac{a+cb}{b}, dove a/b+c=\left(q-2\right)^2+\frac{20}{3}-4, a=20, b=3, c=-4 e a/b=\frac{20}{3}.