数学问题（x+2)³-(x-2)³=3（2x+3)(2x-3)-5x

数学问题（x+2)³-(x-2)³=3（2x+3)(2x-3)-5x
数学问题（x+2)³-(x-2)³=3（2x+3)(2x-3)-5x

数学问题（x+2)³-(x-2)³=3（2x+3)(2x-3)-5x
（x+2)³-(x-2)³=3（2x+3)(2x-3)-5x
==>
(x+2-x+2)[(x+2)²+(x+2)(x-2)+(x-2)²]=3(4x²-9)-5x
==>
4(x²+4x+4+x²-4+x²-4x+4)=12x²-5x-27
==>
4(3x²+4)=12x²-5x-27
==>
12x²+16=12x²-5x-27
==>
5x=-43
==>
x=-43/5