SOLUTION: i have to find x when the 2 leg of a triangle are x and x-7 while the hypnuse of x+1.

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Question 1059687: i have to find x when the 2 leg of a triangle are x and x-7 while the hypnuse of x+1.
Answer by josgarithmetic(39617) About Me  (Show Source):
You can put this solution on YOUR website!
x%5E2%2B%28x-7%29%5E2=%28x%2B1%29%5E2

That is the equation for the description. That is according to Pythagorean Theorem formula for right triangle. Your already-learned algebra skills allow you to solve for x.

Simplify, collect like terms, use either factoring or general solution for quadratic formula.

x%5E2%2Bx%5E2-14x%2B49-x%5E2-2x-1=0
Do the rest!