Question

find 'a' if ( x-a ) is a factor of p(x) = x power 5 - a square x cube + 2x + a + 1​

Answer 1

Answer:

a = -1/3

Step-by-step explanation:

p(x) = x^5 - a²x³+2x+a+1

x-a is a factor, x = a

p(a) = a^5 - a^5+2a+a+1

= 3a+1 = 0

a = -1/3