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The seventh question on page 7 1 which is accompanied by you in mathematics of Jiangsu Education Edition: 1*2*3*4+ 1= () square.
1* 2 * 3 * 4+1= the square of (5); 2 * 3 * 4 * 5+ 1 = squared (11); 11*12 *13 *14+1= the square (155).

n(n+ 1)(n+2)(n+3)+ 1=(n^2+3n)[(n^2+3n)+2]+ 1=(n^2+3n+ 1)^2

If the square of x+4x+the square of y +y+17/4=0,

(x+2)^2 +(y+ 1/2)^2=0

So x=-2, y=- 1/2.

Then the 2005th power of X * the 2006th power of Y =( 1/2).

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