Find the integral $\int\frac{x^4-6x^3+12x^2+6}{x^3-6x^2+12x-8}dx$

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Final answer to the problem

$\frac{1}{2}x^2+\frac{-11}{\left(x-2\right)^{2}}+\frac{-8}{x-2}+C_0$
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Step-by-step Solution

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  • Integrate by partial fractions
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Divide $x^4-6x^3+12x^2+6$ by $x^3-6x^2+12x-8$

$\begin{array}{l}\phantom{\phantom{;}x^{3}-6x^{2}+12x\phantom{;}-8;}{\phantom{;}x\phantom{;}\phantom{-;x^n}}\\\phantom{;}x^{3}-6x^{2}+12x\phantom{;}-8\overline{\smash{)}\phantom{;}x^{4}-6x^{3}+12x^{2}\phantom{-;x^n}+6\phantom{;}\phantom{;}}\\\phantom{\phantom{;}x^{3}-6x^{2}+12x\phantom{;}-8;}\underline{-x^{4}+6x^{3}-12x^{2}+8x\phantom{;}\phantom{-;x^n}}\\\phantom{-x^{4}+6x^{3}-12x^{2}+8x\phantom{;};}\phantom{;}8x\phantom{;}+6\phantom{;}\phantom{;}\\\end{array}$

Learn how to solve integrals by partial fraction expansion problems step by step online.

$\begin{array}{l}\phantom{\phantom{;}x^{3}-6x^{2}+12x\phantom{;}-8;}{\phantom{;}x\phantom{;}\phantom{-;x^n}}\\\phantom{;}x^{3}-6x^{2}+12x\phantom{;}-8\overline{\smash{)}\phantom{;}x^{4}-6x^{3}+12x^{2}\phantom{-;x^n}+6\phantom{;}\phantom{;}}\\\phantom{\phantom{;}x^{3}-6x^{2}+12x\phantom{;}-8;}\underline{-x^{4}+6x^{3}-12x^{2}+8x\phantom{;}\phantom{-;x^n}}\\\phantom{-x^{4}+6x^{3}-12x^{2}+8x\phantom{;};}\phantom{;}8x\phantom{;}+6\phantom{;}\phantom{;}\\\end{array}$

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Learn how to solve integrals by partial fraction expansion problems step by step online. Find the integral int((x^4-6x^312x^2+6)/(x^3-6x^212x+-8))dx. Divide x^4-6x^3+12x^2+6 by x^3-6x^2+12x-8. Resulting polynomial. Expand the integral \int\left(x+\frac{8x+6}{x^3-6x^2+12x-8}\right)dx into 2 integrals using the sum rule for integrals, to then solve each integral separately. The integral \int xdx results in: \frac{1}{2}x^2.

Final answer to the problem

$\frac{1}{2}x^2+\frac{-11}{\left(x-2\right)^{2}}+\frac{-8}{x-2}+C_0$

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Plotting: $\frac{1}{2}x^2+\frac{-11}{\left(x-2\right)^{2}}+\frac{-8}{x-2}+C_0$

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7
8
9
0
a
b
c
d
f
g
m
n
u
v
w
x
y
z
.
(◻)
+
-
×
◻/◻
/
÷
2

e
π
ln
log
log
lim
d/dx
Dx
|◻|
θ
=
>
<
>=
<=
sin
cos
tan
cot
sec
csc

asin
acos
atan
acot
asec
acsc

sinh
cosh
tanh
coth
sech
csch

asinh
acosh
atanh
acoth
asech
acsch

How to improve your answer:

Main Topic: Integrals by Partial Fraction Expansion

The partial fraction decomposition or partial fraction expansion of a rational function is the operation that consists in expressing the fraction as a sum of a polynomial (possibly zero) and one or several fractions with a simpler denominator.

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