Matching Pairs SUMA Y RESTA DE MONOMIOSOnline version Suma y resta de monomios by Paloma Díez Ferrero 1 2xy + 4xy - 8xy= 2 2xy - 2x + 2y= 3 5x^4 - 2x^2 - 3x^2= 4 -4ab + 2ab = 5 17x ^2 - 4x ^2= 6 7a + 5a + 3a= 7 -5x^2 y^2 z - (-x^2 y^2 z)= 8 2x + 3x = -2ab -2xy 13x^2 -4x^2 y^2 z 5x^4 - 5x^2 2xy - 2x + 2y 5x 15a