-(3+b)*(4z+b-3)
Объяснение:
4bz-12z-b^2+9= - (b^2+ 4bz + 4z^2) + 9 - 12z + 4z^2=(2z-3)^2 - (b +2z)^2=(2z-3-b-2z)*(2z-3+b+2z)= -(3+b)*(4z+b-3)
-(3+b)*(4z+b-3)
Объяснение:
4bz-12z-b^2+9= - (b^2+ 4bz + 4z^2) + 9 - 12z + 4z^2=(2z-3)^2 - (b +2z)^2=(2z-3-b-2z)*(2z-3+b+2z)= -(3+b)*(4z+b-3)