二,=[4(m^2-m)+1]^2=(4m^2-4m+1)^2=(2m-1)^4
三:=x^2(x-1)-(x-1)=(x-1)(x^2-1)=(x-1)(x-1)(x+1)=(x-1)^(x+1)
四,=1/4(4x^2+12x+8+1)=1/4(2x+3)^2
二,=[4(m^2-m)+1]^2=(4m^2-4m+1)^2=(2m-1)^4
三:=x^2(x-1)-(x-1)=(x-1)(x^2-1)=(x-1)(x-1)(x+1)=(x-1)^(x+1)
四,=1/4(4x^2+12x+8+1)=1/4(2x+3)^2