Question

If - 1 is a zero of the polynomial f(x) = x^2
- 7x -8. Then find the other zero of f(x ).​

Answer 1

${x}^{2} - 7x - 8 = 0$

As we know the relationship between coefficient and zeroes of the polynomial

$\alpha + \beta = \frac{ - b}{a} \\ - 1 + \beta = - \frac{ - 7}{1} \\ \beta = 7 + 1 \\ \beta = 8$