emilypk64 emilypk64

18-07-2019
Mathematics

contestada

quadratic function

I need help writing quadratic functions the zeroes are 3 and -10

Respuesta :

Banabanana Banabanana

18-07-2019

Answer:

у = x² + 7x - 30

Step-by-step explanation:

x₁ = 3 and x₂ = -10

Use the formula (x - x₁)(x - x₂) = 0

(x - 3)(x - (-10)) = 0

(x - 3)(x + 10) = 0

x² + 10x - 3x - 30 = 0

x² + 7x - 30 = 0

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