SOLUTION: Solve algebraically and check your potential solutions: squareroot of x+20-x=0

Question 164117This question is from textbook
: Solve algebraically and check your potential solutions: squareroot of x+20-x=0 This question is from textbook

Answer by Earlsdon(6294) (Show Source): You can put this solution on YOUR website!
Solve for x, check solutions:
Is this right? You really ought to use parentheses around the radicand to make it clear.
Add x to both sides.
Square both sides.
Rewrite this as:
Factor.

or , so...
or
Check:
Substitute x = -4.
Evaluate.
= Nope! or = OK!
--------------------
Substitute x = 5.
Evaluate.
= OK! or Nope!
RELATED QUESTIONS
Solve algebraically and check your potential solutions show work squareroot... (answered by ankor@dixie-net.com)

CAN SOME ONE HELP ME WITH THIS PROBLEM. SOLVE ALGEBRAICALLY AND CHECK YOUR POTENTIAL... (answered by stanbon)

Solve algebraically and check your potential solutions: sqrt(x+20)-x=0 (answered by mathslover,edjones)

Solve algebraically and check your potential solutions:... (answered by jim_thompson5910)

Solve algebraically and check your potential solutions:... (answered by stanbon)

Solve algebraically and check your potential solutions: sqrt(x+2)-x =0 (answered by stanbon)

Solve algebraically and check your potential solutions:... (answered by solver91311)

Solve Alegebraically and check your potential solutions square root x... (answered by Alan3354)

Solve algebraically? Solve algebraically and check your potential solutions:... (answered by solver91311)