kotayeo kotayeo

02-09-2020
Mathematics

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Select the solutions of the equation. x2 + 3.5x - 2 = 0

Select the solutions of the equation x2 35x 2 0 class=

Respuesta :

luisecubero77 luisecubero77

04-09-2020

Answer:

x₁ = -4

x₂ = 0.5

Step-by-step explanation:

x² + 3.5x - 2 = 0 * 2

2x² + 7x - 4 = 0

(2x + 8)(2x -1)/2 = 0

2(x + 4)(2x - 1)/2 = 0

(x + 4)(2x - 1) = 0

x + 4 = 0

x₁ = -4

2x - 1 = 0

2x = 1

x₂ = 1/2

x₂ = 0.5

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