Question

8. Is (x - 1) a factor of 4x³ + x -
5?​

Answer 1

Answer:

If x-1 would be a factor of p(x) = 4x³ + x - 5 then,

p(1) = 0

p(1) = 4(1)³ + 1 - 5

p(1) = 5-5 = 0

As p(1) = 0, x-1 is a factor of 4x³ + x - 5