Question

If the zeros of polynomial X square + 5 x + 8 then find the alpha + beta

Answer 1

Question:-

• Zeroes of the polynomial ${x}^{2} + 5x + 8$are $\alpha$and$\beta$
• Find $\alpha + \beta$

Solution:-

Given,

${x}^{2} + 5x + 8$

We have,

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

Here,

$a = 1 \: , \: b = 5 \: , \: c = 8$

So,

$\alpha + \beta = \frac{ - (5)}{1}$

$\alpha + \beta = - 5$