wyłącz wspólny czynnik poza nawias
A;
a( a^4 + a^3 + a^2 + 1 )
B ; a( bcd + bc + b + 1 )
a^5+a^4+a^3+a^2+a=a(a^4+a^3+a^2+a+1)
a+ab+abc+abcd=a(1+b+bc+bcd)
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A;
a( a^4 + a^3 + a^2 + 1 )
B ; a( bcd + bc + b + 1 )
a^5+a^4+a^3+a^2+a=a(a^4+a^3+a^2+a+1)
a+ab+abc+abcd=a(1+b+bc+bcd)