Răspuns :
Răspuns:
(4x-1+2x+3)(4x-1-2x-3)=(6x+2)(2x-4)=4(3x+1)(x-2)
Explicație pas cu pas:
(4x-1)²-(2x+3)²=
=[4x-1-(2x+3)]•[4x-1+(2x+3)]=
=(4x-1-2x-3)•(4x-1+2x+3)=
=(2x-4)•(6x+2)=
=2(x-2)•2(3x+1)=
=4(x-2)•(3x+1)
Răspuns:
(4x-1+2x+3)(4x-1-2x-3)=(6x+2)(2x-4)=4(3x+1)(x-2)
Explicație pas cu pas:
(4x-1)²-(2x+3)²=
=[4x-1-(2x+3)]•[4x-1+(2x+3)]=
=(4x-1-2x-3)•(4x-1+2x+3)=
=(2x-4)•(6x+2)=
=2(x-2)•2(3x+1)=
=4(x-2)•(3x+1)