SOLUTION: Solve the equation:
square root x + 7 = 4
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Question 63640: Solve the equation:
square root x + 7 = 4
Answer by Earlsdon(6294) (Show Source): You can put this solution on YOUR website!
Try using parentheses to show your problem more clearly:
Is it
1) ? If this, then write: sqrt(x) + 7 = 4 or is it:
2) ? If this, then write: sqrt(x+7) = 4
If it's 1):
Subtract 7 from both sides.
Square both sides.
Check:
Only the negative 3 (-3) is a valid solution.
If it's 2):
square both sides.
Subtract 7 from both sides.
Check:
Only the positive 4 (+4) is a valid solution.
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