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Question
Find the sum and product of the roots of the quadratic equation 2x2 – 9x + 4 = 0.
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Solution
2x2 – 9x + 4 = 0
Sum of roots = `(- "Coefficient of" x)/("Coefficient of" x^2)`
= `(-(-9))/2`
= `9/2`
Product of roots = `"Constant term"/("Coefficient of" x^2)`
= `4/2`
= 2
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