Question

If x-2 is a factor of x3-3x+5a then the value of a is
مهم​

Answer 1

Step-by-step explanation:

The terms in which value of x when substituted leaves final value of p(x) = "0

here, x-2 is a factor. so value of x is 2

substituting value of x we get,

p(x) = x ^ 3 - 3x+ 5a

p(2) =2^3 - 3(2) +5a

0 = 8-6 + 5a

-2 = 5a

-0.4 = a