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प्रश्न
Find x, if g(x) = 0 where g(x) = `(18 -2x^2)/7`
उत्तर
g(x) = `(18 -2x^2)/7`
g(x) = 0
∴ `(18 -2x^2)/7` = 0
∴ 18 – 2x2 = 0
∴ x2 = `18/2` = 9
∴ x = ±3
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