September 2018 2 29 Report

Matematyka z plusem 2 gimnazjum

Zad 5 str 83

a) (x+3)²=

b) (a-2)²=

c) (2x+5)²=

Zad 6 str 83

Która figura ma większe pole; kwadrat o boku a czy prostokąt o bokach a-1 i a+1

Zad 13 str 83 d.e.f

d) –(3c-2)(c-1)-c(c-2)=

e) 2(3a²-1)-(a+2)(a+2)=

f) 5x²(x²+1)-(x²-2)(x²+3)=

z góry dzięki ;)


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