Impara online a risolvere i problemi di completare il quadrato passo dopo passo. 3a^2+7a+6. Applicare la formula: ax^2+bx+c=a\left(x^2+\frac{b}{a}x+\frac{c}{a}\right), dove a=3, b=7, c=6 e x=a. 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=\frac{7}{3}a, c=2 e x=a. 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=\frac{7}{3}a, c=2, x^2+b=a^2+\frac{7}{3}a+2+\frac{49}{36}-\frac{49}{36}, f=\frac{49}{36}, g=-\frac{49}{36}, x=a e x^2=a^2. Applicare la formula: \frac{a}{b}+c=\frac{a+cb}{b}, dove a/b+c=\left(a+\frac{7}{6}\right)^2+2-\frac{49}{36}, a=-49, b=36, c=2 e a/b=-\frac{49}{36}.

3a^2+7a+6