Impara online a risolvere i problemi di passo dopo passo. 25z^2+30z+16. Applicare la formula: ax^2+bx+c=a\left(x^2+\frac{b}{a}x+\frac{c}{a}\right), dove a=25, b=30, c=16 e x=z. 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=25, b=\frac{6}{5}z, c=\frac{16}{25} e x=z. 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=25, b=\frac{6}{5}z, c=\frac{16}{25}, x^2+b=z^2+\frac{6}{5}z+\frac{16}{25}+\frac{9}{25}-\frac{9}{25}, f=\frac{9}{25}, g=-\frac{9}{25}, x=z e x^2=z^2. Applicare la formula: \frac{a}{b}+\frac{c}{b}=\frac{a+c}{b}, dove a=16, b=25 e c=-9.

25z^2+30z+16