Question

Dados os polinomios:

Answer 1

A = 4x²-9

B = 2x+3

C = x²-3x+1

a) A+B

(4x²-9)+(2x+3)

4x²-9+2x+3

4x²+2x-6

b) A.B

(4x²-9).(2x+3)

8x³+12x²-18x-27

c) C-B

(x²-3x+1)-(2x+3)

x²-3x+1-2x-3

x²-5x-2

d) 5.C

5(x²-3x+1)

5x²-15x+5

e) 2A+3C

2(4x²-9)+3(x²-3x+1)

8x²-18+3x²-9x+3

11x²-9x-15

f) B-3A

(2x+3)-3(4x²-9)

2x+3-12x²+27

-12x²+2x+30

g) B.C

(2x+3)(x²-3x+1)

2x³-6x²+2x+3x²-9x+3

2x³-3x²-7x+3

✨ Prontinho ✨

18/11/21