Question

1) dado o polinômio 9x²y² – 7xy – 11x + 6y, o seu oposto será: * 1 ponto a) –9x²y² + 7xy + 11x – 6y b) 9x²y² – 7xy + 11x – 6y c) –9x²y² + 7xy + 11x + 6y d) –9x²y² – 7xy – 11x – 6y