Impara online a risolvere i problemi di passo dopo passo. Solve the quadratic equation v^2+8v=15. Applicare la formula: x^2+bx=x^2+bx+\left(\frac{b}{2}\right)^2-\left(\frac{b}{2}\right)^2, dove b=8, bx=8v, x=v, x^2+bx=v^2+8v e x^2=v^2. Applicare la formula: x^2+bx+f+g=\left(x+\sqrt{f}sign\left(b\right)\right)^2+g, dove b=8, bx=8v, f=16, g=-16, x=v, x^2+bx=v^2+8v+16-16 e x^2=v^2. Applicare la formula: x+a=b\to x+a-a=b-a, dove a=-16, b=15, x+a=b=\left(v+4\right)^2-16=15, x=\left(v+4\right)^2 e x+a=\left(v+4\right)^2-16. Applicare la formula: x+a+c=b+f\to x=b-a, dove a=-16, b=15, c=16, f=16 e x=\left(v+4\right)^2.

Solve the quadratic equation v^2+8v=15