September 2018 1 8 Report

jaki jednomian należy wpisać na miejsce kropek? Oblicz.
a) (x+3y)^2-...=x^2+5xy+9y^2
b) (b+1)^2 =...+(b-1)^2
c) a^2 +36+...=(a-6)^2
d) 4x(x+3y)+...=(2x+3y)^2



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