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For the equation :x^2+18 x+30=2sqrt(x^2+...

For the equation :`x^2+18 x+30=2sqrt(x^2+18 x+45)dot` (a) product of real root of the equation is 20 (b) sum of real root of the equation is-18 (c) product of real root of the equation is-20 (d) sum of real root of the equation is 18

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