Question

Polinômio: Efetue as multiplicaçoes e reduza os termos semelhantes:
a) (3x+2).(x-3)
b) (3a²+2a+4).(-a-3)
c) (-2x+5).(6x²+4x+3)
d) (5x²+2x-1).(x-3)
e) (a+b).(a-b)
Agradeço desde já

Answer 1

a)3x²-9x+2x-6
3x²-7x-6

b)-3a³-9a²-2a²-6a-4a-12
-3a³-11a²-10a-12

c)-12x³-8x²-6x+30x²+20x+15
-12x³+22x²+24x+15

d)5x³-15x²+2x²-6x-x+3
5x³-13x²-7x+3

e)a²-ab+ba-b²
a²-b²