x² + px + q
x₁ = - 10 x₂ = - 18
q = x₁ * x₂ = - 10 * (- 18) = 180
- p = - 10 + (- 18) = - 28
x² + 28x + 180 = 0
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Verified answer
x² + px + q
x₁ = - 10 x₂ = - 18
q = x₁ * x₂ = - 10 * (- 18) = 180
- p = - 10 + (- 18) = - 28
x² + 28x + 180 = 0