August 2018 1 8 Report
A) ( ₁/₄ x² - o,2y -3 ) - ( - ₁/₅y + 0,25x² - 3 ) =

b)( 1,2xy - 8y² ) - ( -5xy + 10 ₁/₂y² - 8,3 ) - ( - 2,3 + 3,8xy ) =

c) ( 3 ₁/₂x² - 7,5y ) -5 - ( 1 ₁/₂y + 5,5x² - 3,2 ) + 2x² + 9y =

d) -3,2x + ( - 0,8y +2z ) - ( 1,2y - 0,8x ) - ( 2z - 2,4x ) =

e) ( 4a² - 3ab - 0,1a ) + ( - 14a² + 2ab + o,1a ) =



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