The Formula For sum and Product of Quadratic Equation Roots

1. The Formula For sum of Quadratic Equation Roots

Example:
If x₁ and x₂ are the roots of the equation x² + 2x - 3 = 0, then find x₁ + x₂!

Answer:
From the equation x² + 2x - 3 = 0 is obtained:
a  = 1
b = 2
c = -3

2. The Formula For Product of Quadratic Equation Roots

Example:
If x₁ and x₂ are the roots of x² + 2x - 3 = 0, then find x₁ + x₂!

Answer:
From the equation x² + 2x - 3 = 0 is obtained:
a  = 1
b = 2
c = -3

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Referensi :

• To'Ali's book math group accounting and sales

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