October 2018 1 8 Report

Matematyka Wokół nas 1 .
zad 7 str 152 Polecenie:Wykonaj odejmowanie
a) (62+2a+1)-(-32-2a+5)
b) (3/5m2+2/3n2+6)+(-1/3m2-2/3n2-2 i 3/5
c) (1,5x2y-3/4x2-15
zad 8 str 152 Polecenie: Usuń nawiasy u zredukuj wyrazy podobne.
a) 5x+(2x-7)-9x-(-3x+8)+20-8x
b)-5x+(-2y+4x)-(7x-8y)-x+(2-6y)
c)-9z-(4-3z)-8y-(-7z+8y)+(-2y-7)


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