Question

If the remainder of the division of x³+2x²+Kx+3 by x-3 is 21. Find the quotient and the value of K​

Answer 1

p(X)=x^3+2x^2+kx+3

x-3=0

X=3

p(3)=3^3+2×3^2+k×3+3

=27+18+3k+3

=3k+48