Question

Find the remainder when x3+3x2-5x-a is divided by x-a

Answer 1

Step-by-step explanation:

for finding remainder, take x-a= 0=> x = a

and substitute x=a in the given polynomial

=> x³+3x²-5x-a

= a³+3a²-5a-a

= a³+3a²-6a

= a(a²+3a-6) is remainder

hope this helps you