计算(x²+2x+3)(2x-5)
问题描述:
计算(x²+2x+3)(2x-5)
答
=2x³+5x²+4x²-10x+6x-15
=2x³+9x²-4x-15
计算(x²+2x+3)(2x-5)
=2x³+5x²+4x²-10x+6x-15
=2x³+9x²-4x-15