Impara online a risolvere i problemi di prodotti speciali passo dopo passo. -25c^2-40c+16. Applicare la formula: ax^2+bx+c=a\left(x^2+\frac{b}{a}x+\frac{c}{a}\right), dove a=-25, b=-40, c=16 e x=c. 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{8}{5}c, c=-\frac{16}{25} e x=c. 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{8}{5}c, c=-\frac{16}{25}, x^2+b=c^2+\frac{8}{5}c-\frac{16}{25}+\frac{16}{25}-\frac{16}{25}, f=\frac{16}{25}, g=-\frac{16}{25}, x=c e x^2=c^2. Applicare la formula: \frac{a}{b}+\frac{c}{b}=\frac{a+c}{b}, dove a=-16, b=25 e c=-16.

-25c^2-40c+16