Question

multiplicação de polinômio por polinômio (c)(a-1).(a+1) =
(d) (x -2).(x+3) =
(e)(3x+5).(2x-4)=
(f)(x2+x).(2x-5)=
(g)(x+2).(x2-3x+1)=
(h)(5x-3).(2x2+4x-3)=
(i) (8x+5).(x2+9x+5)=
(j)(3x2- 10x+5).(4x+3)=​

Answer 1

Resposta:

c) (a-1)(a+1) =

a²+a-a-1=a²-1

d) x²+3x-2x-6=

x²+x-6

e) 6x²-12x+10x-20=

6x²-2x-20

f)2x³-3x²-5x=

2x³-3x²-5x

g) x³-3x²+x+2x²-6x+2=

x³-x²-5x+2

h) 10x³+20x²-15x-6x²-12x+9=

10x³+14x²-27x+9

i)8x³+77x²+40x+5x²+45x+25=

8x³+77x²+85x+25

j) 12x³-40x²+20x+9x²-30x+15=

12x³-31x²-10x+15