Question

if p=1 q= -2 are root of a quadratic equation,then quadratic equation will be__________​

Answer 1

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p = α = 1 , q = β = -2

Q = x² - (α + β)x + αβ

Q = x² - (1 +(-2))x + 1(-2)

Q = x² - (1 - 2)x - 2

Q = x² - (- 1)x - 2

Q = x² + x - 2