Question

3) Reduza os termos semelhantes: (na foto)
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Answer 1

Resposta:

a) $8x+\dfrac{1}{2}x = \left(8+\dfrac{1}{2}\right)x=\dfrac{17}{2}x$

b) $3a-\dfrac{2}{3}a = \left(3-\dfrac{2}{3}\right)a = \dfrac{7}{3}a$

c) $\dfrac{1}{2}x+\dfrac{1}{3}x = \left(\dfrac{1}{2}+\dfrac{1}{3}\right)x = \dfrac{5}{6}x$

d) $\dfrac{5}{3}x^2-\dfrac{1}{2}x^2 = \left(\dfrac{5}{3}-\dfrac{1}{2}\right)x^2= \dfrac{7}{6}x^2$

e) $\dfrac{1}{2}y-\dfrac{2}{5}y = \left(\dfrac{1}{2} - \dfrac{2}{5}\right)y=\dfrac{1}{10}y$

f) $2x+\frac{1}{2}x-\dfrac{3}{4}x = \left(2+\dfrac{1}{2}-\dfrac{3}{4}\right)x = \dfrac{7}{4}x$

Explicação passo-a-passo: