A problem by Arpit Sah
Level
pending
If both (x-2) and (x- ) are factors of +5x+r,
and if p = kr, find the value of k.
The answer is 1.
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1 solution
Since x=2 and x=1/2 are factors of this given equation. By putting the value of x as 2 and 1/2 in the equations we get two different equations as 4p + 10 + r = 0 and p/4 + 5/2 + r=0. After solving these equations we get p =-2 and r=-2. Substituting there value in p=rk we get k as 1.