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Maths Puzzle
Numerical Ability
solve x^2-16x+32=0 by completing the square
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For a light that has an intensity of 60 candles at its source, the intensity in candles, S, of the light at a point d feet from the source is given by the formula S=60K/dē , where
4/x^2 + 3/x -10 = 0
6 + 4/x-1 = 5/x-3
3.5x + 4.6/x = 1.2
Can anyone help me?!