It is known that a B is opposite to each other and C D is reciprocal to each other. The square of X is equal to 4. Try to find the value of x2 + (a + B + CD) x + (a + b) 2010 + (- CD) 2010
From the Title A + B = 0, CD = 1
The solution of x ^ 2 = 4 is x = 2 or x = - 2
When x = 2, the original formula = 4 + 2-2010 = - 2004
When x = - 2, the original formula = 4-2-2010 = - 2008
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