Question

Find the value of 'a', if (x – a) is a factor of x – ax² + x + 2.​

Answer 1

Step-by-step explanation:

x-a=0

x=a

and,

p(x) = x^3-ax^2+x+2

substituting x=a in p(x) we get,

a^3-a*a^2+a+2=0

a^3-a^3+a+2=0

a+2=0

a=-2