maddie198 maddie198
  • 20-05-2017
  • Mathematics
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Square root of 5u+2 = square root of 3u+14

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bcalle
bcalle bcalle
  • 21-05-2017
sqrt(5u + 2) = sqrt(3u + 14)
Square both sides to clear the square root.
5u + 2 = 3u + 14
subtract 3u from both siides
2u + 2 = 14
subtract 2 from both sides
2u = 12
divide both sides by 2
u = 6
When you square a square root you MUST check the solution.
sqrt(5*6 + 2) = sqrt(3*6 + 14)
sqrt(32) = sqrt(32)

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