Given:
[tex]8x^3+20x^2+36[/tex] divided by [tex](2x+6)[/tex].
To find:
The quotient by using long division method.
Solution:
We have,
Dividend = [tex]8x^3+20x^2+36[/tex]
Divisor = [tex](2x+6)[/tex]
Using long division method we get
[tex]\underline{2x+6}|\overline{8x^3+20x^2+0x+36}|\underline{4x^2-2x+6}[/tex]
[tex]\underline{8x^3+24x^2}[/tex]
[tex]-4x^2+0x[/tex] (After subtraction)
[tex]\underline{-4x^2-12x}[/tex]
[tex]12x+36[/tex] (After subtraction)
[tex]\underline{12x+36}[/tex]
[tex]\underline{\quad 0\quad }[/tex] (After subtraction)
The quotient is [tex]4x^2-2x+6[/tex].
Therefore, the correct option is C.
