若m²+m=1 则m³+2m+2009的值为多少若m²+m=1 则m³+2m²+2009的值为多少?(题目打错了 不好意思)以下是本人的解答:依题意得:∵m2+m=1,∴m3+2m2+2009=m3+m2-m+m2+m+2009=m(m2+m-1)+m2+m+2009=
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![若m²+m=1 则m³+2m+2009的值为多少若m²+m=1 则m³+2m²+2009的值为多少?(题目打错了 不好意思)以下是本人的解答:依题意得:∵m2+m=1,∴m3+2m2+2009=m3+m2-m+m2+m+2009=m(m2+m-1)+m2+m+2009=](/uploads/image/z/2618120-56-0.jpg?t=%E8%8B%A5m%26%23178%3B%2Bm%3D1+%E5%88%99m%26%23179%3B%2B2m%2B2009%E7%9A%84%E5%80%BC%E4%B8%BA%E5%A4%9A%E5%B0%91%E8%8B%A5m%26%23178%3B%2Bm%3D1+%E5%88%99m%26%23179%3B%2B2m%26%23178%3B%2B2009%E7%9A%84%E5%80%BC%E4%B8%BA%E5%A4%9A%E5%B0%91%EF%BC%9F%EF%BC%88%E9%A2%98%E7%9B%AE%E6%89%93%E9%94%99%E4%BA%86+%E4%B8%8D%E5%A5%BD%E6%84%8F%E6%80%9D%EF%BC%89%E4%BB%A5%E4%B8%8B%E6%98%AF%E6%9C%AC%E4%BA%BA%E7%9A%84%E8%A7%A3%E7%AD%94%EF%BC%9A%E4%BE%9D%E9%A2%98%E6%84%8F%E5%BE%97%EF%BC%9A%E2%88%B5m2%2Bm%3D1%EF%BC%8C%E2%88%B4m3%2B2m2%2B2009%3Dm3%2Bm2-m%2Bm2%2Bm%2B2009%3Dm%EF%BC%88m2%2Bm-1%EF%BC%89%2Bm2%2Bm%2B2009%3D)
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若m²+m=1 则m³+2m+2009的值为多少若m²+m=1 则m³+2m²+2009的值为多少?(题目打错了 不好意思)以下是本人的解答:依题意得:∵m2+m=1,∴m3+2m2+2009=m3+m2-m+m2+m+2009=m(m2+m-1)+m2+m+2009=
若m²+m=1 则m³+2m+2009的值为多少
若m²+m=1 则m³+2m²+2009的值为多少?(题目打错了 不好意思)
以下是本人的解答:
依题意得:
∵m2+m=1,
∴m3+2m2+2009=m3+m2-m+m2+m+2009
=m(m2+m-1)+m2+m+2009
=m×0+1+2009
=1+2009
=2010.
若m²+m=1 则m³+2m+2009的值为多少若m²+m=1 则m³+2m²+2009的值为多少?(题目打错了 不好意思)以下是本人的解答:依题意得:∵m2+m=1,∴m3+2m2+2009=m3+m2-m+m2+m+2009=m(m2+m-1)+m2+m+2009=
j可以把后面化解一下~得到4m+2008 然后由前面算出m的值~
最后 答案是2006+2倍根号5 或者2006-2倍根号5
2009