Question

if m and n are the zeros of quadratic polynomial f(x)=x2-x-4 find the value of m/n+n/m

Answer 1

Answer:

-9/4

Step-by-step explanation:

m+n=1 ; -b/a

mn=-4 ; c/a

m/n+n/m= m²+n²/mn

(m+n)²-2mn/mn

substitute the value:-

(1)-2(-4)/-4

1+8/-4

-9/4