Efectuați calculele: d)(2x+3)[(x-1)²-(x-2)²]-4(x-2)(x+2) e) (2x+5)[(x-2)²-(x-3)²]-4(x+1)(x-1) f)(2x+7)[(x-3)²-(x-4)²]-4(x-3)(x+3)​