5(2x-1)(x+6)-3(x-3)(x-6)怎么解
问题描述：
5(2x-1)(x+6)-3(x-3)(x-6)怎么解
答
=5(2x²+12x-x-6)-3(x²-6x-3x-18)
=10x²+55x-30-3x²+27x+54
=7x²=82x+24
答
原式=5(2x²+11x-6)-3(x²-9x+18)
=10x²+55x-30-3x²+27x-54
=7x²+82x-84