Question

me ajudem por favor​

Answer 1

Resposta:

O que vc deseja???

Explicação passo-a-passo:

Answer 2

1)a)

$5xy { }^{2} + 9xy {?}^{2} + xy {}^{2} + 7x ^{3} - 9x {}^{3} + 2x {}^{3}$

$= 15xy {}^{2}$

b)

$- 7a {}^{2} b - 5a + 7ab + 3a$

$= - 2a$

c)

$8 + 7 - 9m + 13m + 7mp - 16mp$

$= 15 + 4m - 9mp$

d)

$\frac{8a + 15a}{20} + \frac{14ab - ab}{6}$

$= \frac{23a}{20} + \frac{13b}{6}$

e)

$4xy {}^{2} - xy {}^{2} + 2xy {}^{2} - 7x {}^{2} y - 3x {}^{2} y$

$= 5xy {}^{2} - 10x {}^{2} y$

f)

$\frac{4abc}{7} - abc + \frac{2abc}{3} + b + 9a + 7a$

$= \frac{12abc - 21abc + 14abc}{21} + b + 16a$

$= \frac{5}{21} + b + 16a$