Question

Dados:
A = ( 9x 3 - 7x 2 y - 8xy -y)
B = ( 12x 2 y - 8xy - 7y)
C = ( - 11x 3 + 9x 2 y)
D = ( 19xy - 3y)
Calcule:
1) A + B =
2) B + C =
3) C + D =
4) A + C =
5) – B + A =
6) – A – D =

Resolva:
a) 5x² + 12x² =
b) -15y3 - y2 - 17y3 =
c) 131x² + 80x + 108x + 390x² =
d) 617x¹¹ + 555x + 913x³ + 200x¹¹ + 727x + 100x³ =
e) 479y + 79x + 500x + 231y =
f) - 111x 2 - 205xk + 116k - 309x² - 875k – 127xk=
g) -215x - 279x =
h) 413x² - 104x⁹ + 716x⁹ - 979x² =
i) -126y³ + 112x - 87y³ + 915x =
j) -725xy - 104y² - 183xy + 710x³ - 99y²- 342x³ =
k) 86ab - 100y - 92ab + 48y – xz + 2xz + 68y =
l) 12a²b +25cd – 8a + 34a²b + 71b – 17a +9cd =

Answer 1

Resposta:

as perguntas do começo não sei te dizer a resposta

a)

$17x {}^{2}$

b)

$- 98y$

c)

$521x {}^{2} + 188x$

d)

$817 x {}^{11} + 1013x {}^{3} + 555x + 727$

e)

$710y + 579x$

f)

$- 309x {}^{2} - 332kx - 222x - 759k$

g)

$- 494x$

h)

$- 566x {}^{2} + 612$

i)

$- 213y {}^{3} + 1027x$

j)

$368x {}^{3} - 908xy - 203y {}^{2}$

k)

$16y - 6ab + xz$

l)

$46a {}^{2} b - 25a + 71b + 34cd$

Espero ter ajudado.