（3x+2）^4 = ax^4 + bx^3 +cx^2 +dx+f对于x的一切值都成立1.令x = 0则 2^4 = f,f = 162令x = 1则 5^4 = a+b+c+d+fa+b+c+d = 625 - 16 = 6093.令x=-1则（-1）^4 = a(-1)^4 + b(-1)^3 + c(-1)^2 +d(-1) + f = a-b+c-d...