Question

1) Dados A = 8x + 3x2 – 5x +10 B = 3x + 5x2 – 9x +2 e O= -4x - 6x +11x–9,calcule. a) A+B b) A + C c) B + C T​

Answer 1

Resposta:

a) A+B

$8x + 3 {x}^{2} - 5x + 10 + 3x + 5 {x}^{2} - 9x + 2 \\ 8 {x}^{2} - 3x + 12$

b) A + C

$8x + 3 {x}^{2} - 5x + 10 + ( - 4x - 6x + 11x - 9) \\ 3 {x}^{2} + 3x + 10 + x - 9 \\ 3 {x}^{2} + 4x + 1$

c) B + C

$3x + 5 {x}^{2} - 9x + 2 + ( - 4x - 6x + 11x - 9) \\ 5 {x}^{2} - 6x + 2 + x - 9 \\ 5 {x}^{2} - 5x - 7$