Respuesta:
Explicación paso a paso:
5a² + (-14ab) +7b² - 30
5ab - (-31b²)+(45)
(-26a²) + ab - 36b²
----------------------------------------
-21a²- 8ab+ 2b + 15
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Respuesta:
Explicación paso a paso:
5a² + (-14ab) +7b² - 30
5ab - (-31b²)+(45)
(-26a²) + ab - 36b²
----------------------------------------
-21a²- 8ab+ 2b + 15