Answer:
The Tooth Fairy
Explanation:
"Ratoncito Perez" = "Tooth Fairy"
Christopher Columbus?
El otro polinomio es:
2x² + 4xy -3x - y²
(3x - 4x² + y²) + a = -2x² + 4xy
a = -2x² + 4xy - (3x - 4x² + y²)
a = -2x² + 4xy - 3x + 4x² - y²
a = -2x² + 4x² + 4xy - 3x - y²
a = 2x² + 4xy - 3x - y²
