amberaviles11
amberaviles11 amberaviles11
  • 22-09-2020
  • Mathematics
contestada

Solve the equation : x^(2)+5=3(x^(2)-3)

Respuesta :

jimrgrant1 jimrgrant1
  • 22-09-2020

Answer:

x = ± 2

Step-by-step explanation:

Given

x² + 5 = 3x² - 3 ( subtract x² + 5 from both sides )

0 = 2x² - 8 ( add 8 to both sides )

8 = 2x² ( divide both sides by 2 )

4 = x² ( take the square root of both sides )

x = ± [tex]\sqrt{4}[/tex] = ± 2

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