a) 95x43 + 52x(129-34)=95x43 + 52x95= 95x(43+52)=95x95=95∧ 2
b) 2004x(2005-3) - 4x2002= 2004x2002 -4x2002= 2002x(2004-4)=2002∧2
c) 2001x(1+2002) - 2003-2000 = 2001x2003 - 2003 - 2000= 2003x(2001-1) -2000= 2003x2000 - 2000 = 2000x(2003-1)= 2000x2002=2002∧2