Question

1) Calcule:

a) (6x + 8x – 3) + (-2x - 5x - 1) =

b) (-7x + 2y - 6) + (-3x – 4y – 5) =

c) (3m - 7) + (5m +2) + (-6m + 4) = d) (4x2 - 4x + 5) - (2x + 7x-1) =

e) (6a - 3b + 2c)- (2a- 2b + 5c) =

f) (4x3 - 5x - 2) -(7-6x) =

2) Efetue as multiplicações:

a) 7x. (x-5) =

b) (y2 - 6y). 4y =

c) -2pq. (-3p²-+ 1) =

d) 9x (xy - 2x + 5y) =

e) (2x³y?). (5x+ 3y) =

f) -5m. (m2- 4m - 2) = =

Me ajudem por favor !

Answer 1

Resposta:

a) (6x + 8x - 3) + (- 2x - 5x - 1)

6x + 8x - 3 - 2x - 5x - 1

7x - 4