Question

05. Simplifique as expressões reduzindo os termos semelhantes: a) 5ax – 12ax + ax = c) x² + 6x² - 2x² = b) (+5y) + (– 4y) – (- 7y) – (+ 11y) = d) 5 2xy + 2 xy =​

Answer 1

Resposta:

a) 5ax – 12ax + ax =

$- 7ax + ax \\ = - 6ax$

b) (+5y) + (– 4y) – (- 7y) – (+ 11y)

$5y - 4y + 7y - 11y \\ y - 4y \\ = - 3y$

c) x² + 6x² - 2x²

$7 {x}^{2} - 2 {x}^{2} \\ = 5 {x}^{2}$

d) 5 2xy + 2 xy

$2xy + 2xy \\ = 4xy$