lukisha1718 lukisha1718
  • 09-11-2018
  • Mathematics
contestada

Solve the equation using square roots: 2x^2 - 17 = 15

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wegnerkolmp2741o
wegnerkolmp2741o wegnerkolmp2741o
  • 09-11-2018

2x^2 - 17 = 15

add 17 on both side

2x^2 = 32

divide both sides by 2

x^2 = 16

take the square root of both sides

x = sqrt (16)

x = +-4

Answer: -4,4

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