Given x2-x-1 = 0, the value of - X3 + 2x2 + 2008 is?

Given x2-x-1 = 0, the value of - X3 + 2x2 + 2008 is?

Given X & # 178; - X-1 = 0, then: X & # 178; - x = 1, X & # 178; = x + 1
So:
-x³+2x²+2008
=-x²·x+ 2x²+2008
=-(x+1)·x+ 2x²+2008
=-x²-x+2x²+2008
=x²-x+2008
=1+2008
=2009

If two times of x ^ 2-6x-2 subtracts a polynomial to get 4x ^ 2-7x-5, then the polynomial is________ .
3. Given a = a ^ 2 + B ^ 2-C ^ 2, B = - 4A ^ 2 + 2B ^ 2 + 3C ^ 2, if a + B + C = 0, then c=________ .

2(x^2-6x-2)-(4x^2-7x-5)
=2x^2-12x-4-4x^2+7x+5
= -2x^2-5x+1
A+B+C=a^2+b^2-c^2-4a^2+2b^2+3c^2+C
=-3a^2+3b^2+2c^2+C=0
C=3a^2-3b^2-2c^2

If 4x * - 7x-5 is obtained by subtracting a polynomial from 2 times of X * - 6x-2, then the polynomial is

2 times of X * - 6x-2 minus 4x * - 7x-5 = - 2x * - 5x + 1
The polynomial is - 2x * - 5x + 1

MBA is () country? The abbreviation of Chinese Basketball League is ()
Sorry, it's the NBA

NBA is the abbreviation of National Basketball Association (National Basketball Association). NBA was founded on June 6, 1946. When it was founded, it was called baa, that is, the Basketball Association of America. It was founded by the owners of 11 ice hockey stadiums and Gymnasiums in order to let the gymnasiums play in the ice hockey games to

NBA is the abbreviation of the National Basketball League

USA

The abbreviation of Chinese Basketball League is

The Chinese Basketball Association (CBA) is recognized by the Chinese Olympic Committee as an Olympic event organization and the only legal organization representing China in the International Basketball Federation and the Asian Basketball Federation

The abbreviation of Chinese Basketball League is ()

CBA, I hope you can adopt it

The Chinese meaning of UN

united nation
the United Nations

What do P and R stand for in Chinese abbreviation P.R.China

Peoples Repablic of China
P means people
R means Republic

Which is McDonald's? Do these two words mean the same thing? Or is one of them wrong?

McDonald's is McDonald's
MacDonald and McDonald explain the difference
These two words are produced after the Celtic language of Scotland and Ireland became English
The two words are actually the same
It was first used in the form of MAC
Mac is like Johnson Williamson in English
John's son William's son
In the use of the process of gradual formation of differentiation
Some people have removed the middle a
It's McDonald