已知:x²+x-1=0,求2009x³+2010x²-2008x-2010的值
已知:x²+x-1=0,求2009x³+2010x²-2008x-2010的值
數(shù)學(xué)人氣:314 ℃時間:2020-03-22 03:05:16
優(yōu)質(zhì)解答
2009x³+2010x²-2008x-2010=(2009x³+2009x²-2009x)+(x²+x-1)+2009=2009x(x²+x-1)+(x²+x-1)+2009=2009
我來回答
類似推薦
- 已知x²-2010=0求x(x+1)²-x(x²+x)-x-2011的值
- 分解因式:2010x²-(2010²-1)x-2010
- 若x的平方+x-1=0,求2009x的3次方+2008x的平方-2010x-2012
- 已知x∧4+x³+x²+x+1=0,求x∧2010的值
- 已知x=1/2(√2010 -1/√2010),求(x+√x²+1)²的值.
- 函數(shù)f(x)=sinx-cosx^2的最小值是?
- 英語翻譯
- I took my grandpa to the hospital this morning,_____ I missed the first class.
- So crazy
- 方差是各個數(shù)據(jù)與平均數(shù)之差的平方的平均數(shù)
- 函數(shù)y=f(x)與它反函數(shù)y=f^-1(x)怎么讀?
- These are photos of my families.Look at them 改錯
猜你喜歡
- 1平面與平面重合,是否屬于平行一類?那重合的兩直線,也屬于平行一類的嗎?
- 2非洲每年因饑餓死亡的人數(shù)及現(xiàn)在饑餓人口數(shù)量拜托各位了 3Q
- 3decide to do sth.還=什么
- 4(7/8)o you think of london?B:5.____london is one of the liveliest cities
- 5啤酒可以托運嗎
- 6邊長為2√6的等邊三角形的中心到一邊的距離為?
- 7please give your hand to help me
- 8已知2的X次方等于3的Y次方等于6的Z次方不等等于1,證明X分之一加Y分之一等于Z分之一.
- 9幫我做做?
- 10機械分析天平TG628A的使用說明書
- 11in winter ,we wear warm coats to protect our bodies_.
- 12( )was most importance to her ,she told me,was her family it this what as