frances1224 frances1224

14-07-2020
Mathematics

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The equation x2 − 6x − 27 = 0 when solved is:

Respuesta :

devishri1977 devishri1977

14-07-2020

Answer:

-3 , 9

Step-by-step explanation:

Sum = - 6

Product = -27

Factors = 3, -9

x² - 6x-27 = 0

x² + 3x - 9x - 9*3 = 0

x(x + 3) - 9(x + 3) = 0

(x + 3) (x - 9) = 0

x +3 = 0 ; x - 9 = 0

x = - 3 ; x = 9

Solution: x = -3 , 9

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