Question

find the remainder when x³+3x²+1is divided 2x+5​

Answer 1

Answer:

-267/8

Step-by-step explanation:

2x+5

x=-5/2

p(x)=x³+3x²+1

putting x=-5/2

p(-5/2)=(-5/2)³+3(-5/2)²+1

          =(-125/8)+(-75/4)+1

          =-125-150+8

                     8

         =-267/8