Question

-4²-3×2²×(1/3-1/2)÷(-4/3)

Answer 1

问：-4²-3×2²×(1/3-1/2)÷(-4/3)

答：您好，-4²-3×2²×(1/3-1/2)÷(-4/3)具体计算过程如下:

答：-4²-3×2²×(1/3-1/2)÷(-4/3)＝-16-3×4×（-1/6）×（-3/4）＝-16-12×（-1/6）×（-3/4）＝-16-2×3/4＝-16-3/2＝-35/2

问：-4²不应该是16吗

答：不是（-4）²才是16

答：-4²＝-4×4=-16

答：（2x-1）³＝（2x-1）（4x²+1-4x）＝8x³+2x-8x-4x²-1+4x＝8x³-4x²-2x-1

答：所以a3＝8，a2＝-4，a1＝-2，a0＝-1

问：m²+m-1＝0,则m³＋2m²＋2016＝＿

答：正确的呢

问：嗯

答：m²+m-1＝0,则m³＋2m²＋2016＝2017