Integrate the function $\frac{x^2}{x+1}$ from $9$ to $4$

Step-by-step Solution

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Final answer to the problem

$-\frac{55}{2}-\ln\left(10\right)+\ln\left(5\right)$
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Step-by-step Solution

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  • Integrate by partial fractions
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  • Integrate using basic integrals
  • Product of Binomials with Common Term
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1

Since the upper limit of the integral is less than the lower one, we can rewrite the limits by applying the inverse property of integration limits: If we invert the limits of an integral, it changes sign: $\int_a^bf(x)dx=-\int_b^af(x)dx$

Learn how to solve integrals of polynomial functions problems step by step online.

$-\int_{4}^{9}\frac{x^2}{x+1}dx$

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Learn how to solve integrals of polynomial functions problems step by step online. Integrate the function (x^2)/(x+1) from 9 to 4. Since the upper limit of the integral is less than the lower one, we can rewrite the limits by applying the inverse property of integration limits: If we invert the limits of an integral, it changes sign: \int_a^bf(x)dx=-\int_b^af(x)dx. Divide x^2 by x+1. Resulting polynomial. Expand the integral \int\left(x-1+\frac{1}{x+1}\right)dx into 3 integrals using the sum rule for integrals, to then solve each integral separately.

Final answer to the problem

$-\frac{55}{2}-\ln\left(10\right)+\ln\left(5\right)$

Exact Numeric Answer

$-28.193147$

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Function Plot

Plotting: $\frac{x^2}{x+1}$

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5
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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

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