SOLUTION: Using The Pythagorean Theorem to solve quadratic equation. Its for finding the sides of a right triangle. the longest side says "x+4" the others read "x" and "2x-2" which equat

Algebra ->  Pythagorean-theorem -> SOLUTION: Using The Pythagorean Theorem to solve quadratic equation. Its for finding the sides of a right triangle. the longest side says "x+4" the others read "x" and "2x-2" which equat      Log On


   



Question 841945: Using The Pythagorean Theorem to solve quadratic equation.
Its for finding the sides of a right triangle.
the longest side says "x+4"
the others read "x" and "2x-2"
which equation is correct?
x^2 = (2x-2)^2 + (x+4)^2
x^2 + (x+4)^2 = (2x-2)^2
x^2 = (2x-2)^2-(x+4)^2
x^2 + (2x-2)^2 = (x+4)^2
Please help

Answer by LinnW(1048) About Me  (Show Source):
You can put this solution on YOUR website!
a%5E2+%2B+b%5E2+=+c%5E2 where a and b are the shorter side and c is the hypotenuse.
So for our problem,
x%5E2+%2B+%282x-2%29%5E2+=+%28x%2B4%29%5E2