Algebra 1 Quadratic Equations Solution of Problems
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 Solution of problems involving Quadratic Equations Example: the sum of two number is 9. if the sum of their reciprocals is 9/20, find the numbers.
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 Solution: let the required numbers be x and 9 - x. then,         9 / {x(9 - x) }= 9 /209 * 20 = 9 * x(9 - x)180 = 81x - 9x29x2 - 81x + 180 x2 - 9x + 20 x2 - 4x - 5x + 20 x(x - 4)-5(x - 4)(x - 5)(x - 4)

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