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. (square rt. 5) +(square rt. 25) =

2. If y=x^2 +2x +k passes through the point (1,2), then k =

3. If F(x) = 1 +3x^2, where X cannot be 0, then F(x+2)-F(2)/(x) =

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1. (square rt. 5) +(square rt. 25) = 2. If y=x^2 +2x +k passes through the point (1,2), then k = 3. If F(x) = 1 +3x^2, where X cannot be 0, then F(x+2)-F(2)/(x) =