Divide the following polynomials, then place the answer in the proper location on the grid. Write the answer in descending powers of a.
Divide 5a2 + 6a - 9 into 25a4 + 19a2 - a - 78.

Question

Divide the following polynomials, then place the answer in the proper location on the grid. Write the answer in descending powers of a.
Divide 5a2 + 6a - 9 into 25a4 + 19a2 - a - 78.

anonymous · Answer

I dont know how to write the answer, however the result is
$$5a^2 - 6a + 20$$
with remain is $$-121a - 78$$

The attached picture is how I solved it.

anonymous · Answer

Thank you so much :)) I'll see your work and tell you if I dont understand anything

anonymous · Answer

Sorry , I see I made a mistake in my previous work :) It is good if you found that mistake :D

anonymous · Answer

Actually, the remain should be equal to -67a + 102 In maths, this is called Long-Division-Polynomials. More references, you can study in this website: http://www.mathsisfun.com/algebra/polynomials-division-long.html