September 2018 3 32 Report
Usuń nawiasy i wykonaj redukcję wyrazów podobnych
a) 6x+ (7+4x)
b) 3x+(-4x-5y)
c) b+ (2a-4b + 9)
d) a+ (1-7a) - 6a
e) (3a-6b)+ (9a-5+b)
f) x²+ (2x²-1+x)+x
g)(6z-4z²)+(-5z+6z²)
h) 5/6 a²+ (3/4 a- 1/6a²)+a

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