Question

Efetuas as seguintes subtrações de polinômios: a) (5x² + 6x – 1) – (2x² + 3x – 1) = b) ( x² + 4x – 3) – (-2x² + 4x – 5) = c) (7x – 4y + 2) – (-x – 2y – 6) = d) (xy + 4x – 2) – (3xy – 4x – 3) =

Answer 1

1. resposta:A:
2. $3x {}^{2} + 6x - 3x$B:
3. $3x {}^{2} + 2$C:
4. $2(4x - y + 4)$D:
5. $- 2xy + 8x + 1$