SOLUTION: Divide: x^4 + x^2 -80 ----------- - x + 3 I have some very crazy answers in this one: a) x^3 - 3x^2 - 10x + 30 + -10/x+3 b) x^3

SOLUTION: Divide: x^4 + x^2 -80 ----------- - x + 3 I have some very crazy answers in this one: a) x^3 - 3x^2 - 10x + 30 + -10/x+3 b) x^3 - 3x^2 + 10x + 30 + 10/x+3 c) x^3

Question 70437: Divide:
x^4 + x^2 -80
-------------
x + 3
I have some very crazy answers in this one:
a) x^3 - 3x^2 - 10x + 30 + -10/x+3
b) x^3 - 3x^2 + 10x + 30 + 10/x+3
c) x^3 - 3x^2 + 10x - 30 + 10/x+3
d) x^3 - 3x^2 - 10x - 30 + -10/x+3
This problem has lost me and I need some help on trying to solve this one, thank you
Answer by funmath(2933) (Show Source): You can put this solution on YOUR website!
Divide:
x^4 + x^2 -80
-------------
x + 3
I have some very crazy answers in this one:
a) x^3 - 3x^2 - 10x + 30 + -10/x+3
b) x^3 - 3x^2 + 10x + 30 + 10/x+3
c) x^3 - 3x^2 + 10x - 30 + 10/x+3
d) x^3 - 3x^2 - 10x - 30 + -10/x+3
The answer is, "c". Normally, I try to show you step by step how to get there, but I haven't found a way to show long division in this format.
I'll do what I can:
: x^3-3x^2+10x-30
:______________________
x+3|x^4+0x^3++0x+x^2-80
--|-(x^4+3x^3)
---__________
---------|-3x^3+x^2
---------|-(-3x^3-9x^2)
---------______________
-----------------|10x^2+0x
----------------|-(10x^2+30x)
----------------_____________
------------------------|-30x-80
------------------------|-(-30x-90)
-------------------------__________
--------------------------------| 10
We write the remainder over the divisor and add it to the quotient to get:

Happy Calculating!!!
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