Wyrazy algebraiczne-Zadanie w linku(z powodów technicznych) PILNIE NA DZIS !!!! DAJE NAJ!!!!!!!!!
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a) (a+b) + (2a-b) = a + b + 2a - b = 3a
b) -5ab + (bc-2ab) + 4cb = -5ab + bc - 2ab + 4cb = -7ab + 5bc
c) (m+n) - (2m + 3n) = m + n - 2m - 3n = -m - 2n
d) 3abc -(2cab + 5bac) = 3abc - 2cab - 5bac = -4abc
e) 2x +(3y - 2z) +(3z - 2x) = 2x + 3y - 2z + 3z - 2x = 3y + z
f) (5xyz - 2xz) + (4zx - 7zyx) = 5xyz - 2xz + 4zx - 7zyx = -2xyz + 2xz
g) (2xy + 4y^2) - (3yx - 2y^20 = 2xy + 4y^2 - 3yx + 2y^2 = -xy + 6y^2
h) 10x^2y - (5xy^2 - 8x^2y) = 10x^2y - 5xy^2 + 8x^2y = 18x^2 - 5xy^2