Impara online a risolvere i problemi di completare il quadrato passo dopo passo. 19+16y^2-56y. Applicare la formula: ax^2+bx+c=a\left(x^2+\frac{b}{a}x+\frac{c}{a}\right), dove a=16, b=-56, c=19 e x=y. 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=16, b=-\frac{7}{2}y, c=\frac{19}{16} e x=y. 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=16, b=-\frac{7}{2}y, c=\frac{19}{16}, x^2+b=y^2-\frac{7}{2}y+\frac{19}{16}+\frac{49}{16}-\frac{49}{16}, f=\frac{49}{16}, g=-\frac{49}{16}, x=y e x^2=y^2. Applicare la formula: \frac{a}{b}c=\frac{ca}{b}, dove a=7, b=4, c=-1, a/b=\frac{7}{4} e ca/b=- \frac{7}{4}.

19+16y^2-56y