Question
20,21 and question 22
Q20. Find the values of a it x3 – 5x (a – 1) – 3(x + 1) + 5a is divisible by x – a.
Q21. Find the value of a if x – a is a factor of the polynomial x5 – a x4 + x3 –a x2 + 2x + 3a – 2.
Q22. Find th remainder when x3 + 3px + q is divided by (x2 –a2) without actual division.