Question

answer this question please​

Answer 1

Answer:

As a,b,c,d are distinct integers

Rearranging RHS as (1)*(-1)*(2)*(-2) = 4

(x-a)(x-b)(x-c)(x-d) = (1)(-1)(2)(-2)

Comparing LHS and RHS

(x-a)=1

a = x-1

(x-b)=-1

b = x+1

(x-c)=2

c = x-2

(x-d)=-2

d = x+2

now in a+b+c+d/r, substitute values of a,b,c,d

x-1+x+1+x-2+x+2/r

= 4x/r

Since x = r

= 4r/r

= 4/1

Hence the ratio is 4:1