September 2018 2 14 Report

Opuść nawiasy i doprowadź do sumy algebraicznej.

a) 7(2x-3)-5(2-x)+x+1
b) 6a(a+1)-9(a^{2} -a)+8a^{2}

c) 2xx^{2} (x+1)+x^{2}(1-x)+x^{2}

d)k^{2}(1-3k)+3(k^{2}-3)+1 e) 3[tex]a^{2}(-a+3)-2a(4a+1)-a^{2}

f) 4a(4a-1)-2a(4a^{2}-a-2)-2a^{2}


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