a) [tex] 2^{76}+ 2^{78} + 2^{80} = 2^{76}( 1+2^{1} + 2^{2}) = 2^{76}(1+2+4)= 2^{76} * 7[/tex]
d) [tex]7* 4^{35} + 2* 4^{36} - 4^{34} = \\ = 4^{34} (7* 4^{1} +2* 4^{2} -1)= \\ =4^{34} (7*4+2*16-1) = \\ = 4^{34} (28+32-1) = \\ = 4^{34} * 59[/tex]
g) [tex] 46^{135} +5* 46^{136} - 46^{134} = \\ = 46^{134}( 46^{1} +5* 46^{2} -1)= \\ = 46^{134} (46+5*2116-1) = \\ = 46^{134} (46+10580-1) = \\ = 46^{134} *10625[/tex]
