Friday

November 28, 2014

November 28, 2014

Posted by **Anonymous** on Monday, October 24, 2011 at 5:06pm.

(X^3+3ix^2-4ix-2)/(x+i)

- College Algrebra -
**Steve**, Monday, October 24, 2011 at 5:41pmThe same way you do it normally. Just keep track of the i's and remember that -i^2 = 1

So, the rows of coeffiicients are (munged by font spacing)

1 3i -4i -2 (i

0 i -4 -4i+4

_____________

1 4i -4-4i 2-4i

So that means that

(x^3 + 3ix^2 - 4ix - 2)/(x-i)

= x^2 + 4ix - (4+4i) remainder 2-4i

If you multiply it out, it works.

**Answer this Question**

**Related Questions**

Math - Use synthetic division to find the quotient and remainder: (2x^5-7x^3-5x...

Algebra - Factor find the zeros x^5-9x^3 Find the quotient and remainder using ...

math - Use synthetic division to find the quotient and remainder. (r^2-2r+2), (r...

Algebra - Use synthetic division to find the quotient and the remainder of: (x^3...

Algebra - please help me with this question and check my answers. Solve the ...

Algebra - (4x^3-9x+8x^2-18)/(x+2)-use synthetic division to divide. I set it up ...

math - use synthetic division (x^3+6x^2-6x+3)/ (x-6) I got 1 0 -6 -33 so I put ...

Algebra - Use the remainder theorem to findvP(-2) for P(x)=2x^4+4x^3-5x^2+4. ...

Math - Use synthetic division and the remainder theorem to find the value 3x^3-...

Algebra - Use synthetic division to divide the polynomial 2x^3 – 12x – 5 by x + ...