Question

if alpha beta are the zeros of x^2+7 what is alpha + beta

Answer 1

Step-by-step explanation:

let us suppose a general quadratic equation

ax² + bx + c = 0

and let us suppose x and y are roots of the equation

x + y.= -b/a

(x) × (y) = c/a

So similarly in x² +7

coefficient of x = 0

which means b = 0

alpha + beta = -b/a = 0