Fraction decomposition
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$$1$$
General simplification
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$$1$$
1.0*(-1 + 0.142857142857143*y)^4*(-1 + 0.0204081632653061*y^2)^4/((1 + 0.142857142857143*y)^4*(1 + 0.0204081632653061*y^2 - 0.285714285714286*y)^4)
1.0*(-1 + 0.142857142857143*y)^4*(-1 + 0.0204081632653061*y^2)^4/((1 + 0.142857142857143*y)^4*(1 + 0.0204081632653061*y^2 - 0.285714285714286*y)^4)
Combining rational expressions
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4
/ 2\ 4
\-49 + y / *(-7 + y)
----------------------------
4 4
(7 + y) *(49 + y*(-14 + y))
$$\frac{\left(y - 7\right)^{4} \left(y^{2} - 49\right)^{4}}{\left(y + 7\right)^{4} \left(y \left(y - 14\right) + 49\right)^{4}}$$
(-49 + y^2)^4*(-7 + y)^4/((7 + y)^4*(49 + y*(-14 + y))^4)
4
4 / 2 \
(y - 7) *\y - 49/
--------------------------
4
4 / 2 \
(y + 7) *\y - 14*y + 49/
$$\frac{\left(y - 7\right)^{4} \left(y^{2} - 49\right)^{4}}{\left(y + 7\right)^{4} \left(\left(y^{2} - 14 y\right) + 49\right)^{4}}$$
(y - 7)^4*(y^2 - 49)^4/((y + 7)^4*(y^2 - 14*y + 49)^4)
4
/ 2\ 4
\-49 + y / *(-7 + y)
--------------------------
4
4 / 2 \
(7 + y) *\49 + y - 14*y/
$$\frac{\left(y - 7\right)^{4} \left(y^{2} - 49\right)^{4}}{\left(y + 7\right)^{4} \left(y^{2} - 14 y + 49\right)^{4}}$$
(-49 + y^2)^4*(-7 + y)^4/((7 + y)^4*(49 + y^2 - 14*y)^4)
Rational denominator
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4
/ 2\ 4
\-49 + y / *(-7 + y)
--------------------------
4
4 / 2 \
(7 + y) *\49 + y - 14*y/
$$\frac{\left(y - 7\right)^{4} \left(y^{2} - 49\right)^{4}}{\left(y + 7\right)^{4} \left(y^{2} - 14 y + 49\right)^{4}}$$
(-49 + y^2)^4*(-7 + y)^4/((7 + y)^4*(49 + y^2 - 14*y)^4)
Assemble expression
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4
/ 2\ 4
\-49 + y / *(-7 + y)
--------------------------
4
4 / 2 \
(7 + y) *\49 + y - 14*y/
$$\frac{\left(y - 7\right)^{4} \left(y^{2} - 49\right)^{4}}{\left(y + 7\right)^{4} \left(y^{2} - 14 y + 49\right)^{4}}$$
(-49 + y^2)^4*(-7 + y)^4/((7 + y)^4*(49 + y^2 - 14*y)^4)
4
/ 2\ 4
\-49 + y / *(-7 + y)
--------------------------
4
4 / 2 \
(7 + y) *\49 + y - 14*y/
$$\frac{\left(y - 7\right)^{4} \left(y^{2} - 49\right)^{4}}{\left(y + 7\right)^{4} \left(y^{2} - 14 y + 49\right)^{4}}$$
(-49 + y^2)^4*(-7 + y)^4/((7 + y)^4*(49 + y^2 - 14*y)^4)