Question

VALENDO 25 PONTOS !!!

RESPONDA E DÊ AS CONTAS DE TODAS AS CONTINHAS ABAIXO NA FOTO !!

Answer 1

$a) \ \dfrac{3}{8}*x + \dfrac{1}{2}*x = \dfrac{(3x + 4x)}{8}= \dfrac{7x}{8}\\ \\ b) \ \dfrac{a}{2} - \dfrac{2a}{3} = \dfrac{3a - 2*(2a)}{6} = \dfrac{3a -4a}{6}= \dfrac{-a}{6}\\ \\ c) \ 7p - \dfrac{3p}{5}= \dfrac{35p-3p}{5}= \dfrac{32p}{5} \\ \\ d) \ 2x^3 + x^3 + x + \dfrac{x}{2} = \dfrac{4x^3 + 2x^3+2x +x}{2} = \dfrac{6x^3+3x}{2}\\ \\ e) \ 3a - 6a - \dfrac{3}{5}+1 = \dfrac{15a-30a-3+5}{5}= \dfrac{-15a+2}{5}$
$f) \ \dfrac{2a}{3}+ \dfrac{1}{6}- \dfrac{a}{2}- \dfrac{1}{9} = \dfrac{12a+3-9a-2}{18}=\dfrac{3a+1}{18}$

*-*-*-*-*-*-*-*-*-*-*-*-*-*-*
Obrigado pela oportunidade 
Boa sorte, bons estudos!
SSRC - ♑ - 2015 
*-*-*-*-*-*-*-*-*-*-*-*-*-*-*