Question

Dados os polinômios:

f(X) ≡ 4x2 – 2x + 7; g(X) ≡ 5x3 + x2 + x + 5 h(X) ≡ x

4 – 3x + 2.

Calcule (f + g)(x); (g – h)(x) e (h – f)(x)

Answer 1

(F + G) (x)

$(4 { \times }^{2} - 2 \times + 7)$

$(5 { \times }^{3} + { \times }^{2} + \times + 5 )$

=

$5 { \times }^{3} + 5 { \times }^{2} - \times + 12$

. (X) =

$5 { \times }^{4} +5 { \times }^{3} - { \times }^{2} + 12 \times$

(G - H) (X) =

$(5 { \times }^{3} + { \times }^{2} + \times + 5 )$

- X

=

$5 { \times }^{3} + { \times }^{2} + 5$

. (X) =

$5 { \times }^{4 } + { \times }^{3} + 5 \times$

(H - F) (X) =

X -

$4 { \times }^{2} - 2 \times + 7$

=

$4 { \times }^{2} + 3 \times + 7$

. (X) =

$4 { \times }^{3} + 3 { \times }^{2} + 7 \times$