September 2018 2 15 Report

Matematyka ( książka ) : matematyka z plusem ( gimnazjum ) .

zad . 3/79

a) 3(a+b) + (a-2b)

b) -4(x-z) - (x+y)

c) 5(4x-7) + (7-4x)

d) (4x-y) -2(x+y)

e) 2(3x-2y+3z) -5(x-y-z)

f) 4x(x-y-z) -2x(4x-y+z)

g) -3x do potęgi 2 (x-2/3y) +5x(x do potęgi 2 -7xy)

h) -2 pierwiastek z 2 (a+ pierwiastek z 2 b) -4(a pierwiastek z 2 -2b )


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