Question

Simplifique as adições algébricas

a) 2 3
— x + — x
3 4

b) - 1 3 2 7
— x² +— x² - x² +— x² - — x²
2 5 5 2

c) 5xy 4xy xy
— - — + —
6 3 2

Answer 1

A) 2/3x + 3/4x = 8/12x + 9/12 = 16/12x = 4/3x

B) -1/2^2 + 3/5x^2 - x^2 + 2/5x^2 - 7/2x^2 =
    -5/10^2 + 6/10x^2 - 5/10x^2 + 4/10x^2 - 35/10x^2 =
     - 35/10x^2 = -7x^2

c) 5/6xy - 4/3xy + xy =
     5/6xy - 8/6xy + 3/6xy = 0