Question

What is the remainder when (3x4 + 2x3 - x2 + 2x - 9) ÷ (x + 2)

Answer 1

0

5

10

15

Answer 2

15

Answer 3

\(\bf (3x^4 + 2x^3 - x^2 + 2x - 9) \div (x + 2)
\\ \quad \\
\textit{remainder theorem, remainder of }f(x)\ is
\\ \quad \\
x+2=0\implies x={\color{red}{ -2}}\qquad remainder\implies f({\color{red}{ -2}})\)

Answer 4

(3x4+2x3-x^2+2x-9)/(x-2)
12+6-x+2x-9)/(x-2))
18-3x-9)/(x-)
9-3x/x-2)
9+2-3x/x-2+2
11-3x/x
x=-3
11/-3=
-3.66
-4

I might be wrong but this is how I worked it out. Check with others. I am new to thing

Answer 5

This type of problem.