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December 20, 2014

December 20, 2014

Posted by **Laura** on Sunday, January 23, 2011 at 7:07pm.

Help would be greatly appreciated! Thanks!

- Pre-Calc -
**Ruby**, Sunday, January 23, 2011 at 7:17pmx=+-√(14

- Pre-Calc -
**helper**, Sunday, January 23, 2011 at 9:39pmsqrt(x-6)+sqrt(x+10) = 8

sqrt(x-6) = 8 - sqrt(x+10)

Square both sides

x - 6 = (8 - sqrt(x + 10))^2

Expand out terms on the right hand side

x - 6 = x - 16sqrt(x + 10) + 74

16sqrt(x + 10) = 80

Divide both sides by 16

sqrt(x + 10) = 5

Square both sides

x + 10 = 25

x = 15

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