Question

If sum of the root is - 7 and product of roots is 5. Write its quadratic equation

Answer 1

Step-by-step explanation:

k= (x2-x(alpha+beta)+(alpha*beta)where k is constant

x2-x*(-7)+5

x2+7x+5

Answer 2

Answer:

The quadratic equation is $x^{2}$ +7x + 5 =0

Step-by-step explanation:

Let two roots of quadratic equation are $\alpha and \beta$

$\alpha +\beta$ = - 7

$\alpha \beta$ = 5

As we know that formula of quadratic equation is

$x^{2}$ - $(\alpha + \beta )$ x +$\alpha \beta$ =0

$x^{2}$ - ( -7)x +5 =0

$x^{2}$ + 7x +5 =0