Question

Realize a multiplicação dos polinômios
A) (x+2)x(x+4)
B) (x-5)x(x+5)
C) (x+3)x(x+1)x(x+2)

Answer 1

a) (x+2) . (x+4)

x² + 4x + 2x + 8

= x² + 6x + 8

b) (x-5) . (x+5)

x² - 25

c) (x+3) . (x+1) . (x+2)

(x² + x + 3x + 3) . (x+2)

(x² + 4x + 3) . (x+2)

x³ + 2x² + 4x² + 8x + 3x + 6

x³ + 6x² + 11x + 6

Abraços1

Answer 2

Resposta:

a) x²+4x+2x+8=

x²+6x+8.

b) x²+5x-5x-25=

x²-25.

c) (x²+x+3x+3).(x+2)=

x³+2x²+x²+2x+3x²+6x+3x+6=

x³+6x²+11x+6.