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December 21, 2014

December 21, 2014

Posted by **Bankai** on Wednesday, January 13, 2010 at 10:41pm.

(provide a little of steps if available)

- Math -
**drwls**, Thursday, January 14, 2010 at 12:19amThe Pythagorean theorem tells you that

65^2 = x^2 + (2x -10)^2

4225 = 5x^2 -40x + 100

Now collect terms

5x^2 -40x -4125 = 0

Divide by 5 to simplify.

x^2 -8x - 825 = 0

That equation can be factored.

(x+25)(x-33) = 0

The only positive root is x = 33 cm

The other side must be 56 cm long

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