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Input:
x^2*y^2=(1 +y)^2*(4-y^2)
Write:
`x^2*y^2=(1 +y)^2*(4-y^2)`
Compute:
$${x}^{2}\ {y}^{2}={(1+y)}^{2}\ (4 - {y}^{2})$$
Output:
$${x}^{2}\ {y}^{2}={(1+y)}^{2}\ (4 - {y}^{2})== {x}^{2}\ {y}^{2}=(4-{y}^{2})\ {(1+y)}^{2}$$
Result: $${x}^{2}\ {y}^{2}=(4-{y}^{2})\ {(1+y)}^{2}$$
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