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13-11-2021
Mathematics

contestada

What is the solution set of the equation 6x^2 - 18x - 18 =6?

Respuesta :

lor067ewp lor067ewp

13-11-2021

Answer:

The solution set is {4, -1}

Step-by-step explanation:

6x²- 18x -18 = 6

6x²- 18x -18 - 6 = 0

6x²- 18x -24 = 0

6(x² - 3x - 4) = 0

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

6 = 0 not true

x - 4 = 0 ; x + 1 = 0

x = 4 x = - 1

The solution set is {4, -1}

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