Question

4. Calcule os polinômios.
a) (6a - 2b + 3c) + (7a + 9b – 8c) =
b) (-5x + 4y + 2z) – (-2x – 3y + 10z) =
c) (-5x3) . (5x2 – x – 1) =
d) (4x2 - 3x4 + 1) : (x – 2) =

Answer 1

a) (6a - 2b + 3c) + (7a + 9b – 8c)

(6a + 7a) + (-2b + 9b) + (3c - 8c)

13a + 7b - 5c

b) (-5x + 4y + 2z) – (-2x – 3y + 10z)

(-5x + 4y + 2z) + (2x + 3y - 10z)

(-5x + 2x) + (4y + 3y) + (2z - 10z)

-3x + 7y - 8z

c) (-5x3) . (5x2 – x – 1)

>>> SE FOR (-5x³) . (5x² - x - 1)

[(-5x³) . 5x²] + [(-5x³) . (- x)] + [(-5x³) . (- 1)]

$- 25x^{5} + 5x^{4} + 5 {x}^{3}$

d) (4x2 - 3x4 + 1) : (x – 2)

>>> SE FOR $(4 {x}^{2} - 3 {x}^{4} + 1) \div (x - 2)$