V(6-4X+X^2)=x+4
6-4x+x^2=(x+4)^2
6-4x+x^2=x^2+8x+16
8x+4x=6-16
12x=-10
x=-10/12
x=-5/6
( (33³-29³):4 + 33*29) : (56²-6²) = ( ((33²+33*29+29²)(33-29)):4 + 33*29) : ( (56-6)(56+6) ) = ( 33²+33*29+29²+33*29) : ( 50*62) = (33²+2*33*29+29²) : (50*62) = (33 + 29)² : (50*62) = 62² : (50*62) = 62 : 50 = 1,24
3(-1/3)-8(-0,125)=-1+1=0