Question

Divide the following polynomials. Write the answer in descending powers of a.

Divide 5a2 + 6a - 9 into 25a4 + 19a2 - a - 78.

Answer 1

the answer to this question is 5a^2-6a+20+(-175a+102)over(5a^2+6a-9)

Answer 2

ddd

Explanation:

Divide 5a2 + 6a - 9 into 25a4 + 19a2 - a - 78.

5a^2 -6a +20

-------------------------------------------------

5a^2+6a-9 25a^4 + 0a^3 +19a^2 - 1a - 78

25a^2 + 30a^3 - 45a^2

------------------------------------------------(subtract)

-30a^3 +64a^2 -1a

-30a^3 -36a^2 +54a

-----------------------------------------------(subtract)

100a^2 -55a -78

100a^2 +120a - 180

------------------------------------------------------

- 175a +102

Quotient : 5a^2 -6a+20

Remainder : -175+102

Answer is :
`5a^2 -6a+20 + (-175a+102)/(5a^2+6a-9)`