Question

alpha, beta are zeros of the quadratic polynomial
f(x) = 2xsquare + 11x + 5 find 1 /alpha + beta​

Answer 1

Answer:

2x² + 11 x + 5 = 0

2x² + 10x + x + 5=0

x = -1/2, -5

alpha = -½

beta = -5

1/ alpha + 1/ beta = -2 + (-⅕)

= -10 + (-1) / 5

= -11/5

Answer = -11/5