Solve the equation. \sqrt{3-x}-x=3

foass77W

foass77W

Answered question

2021-09-20

Solve the equation.
3xx=3

Answer & Explanation

Sally Cresswell

Sally Cresswell

Skilled2021-09-21Added 91 answers

Step 1: Given
3xx=3
Step 2: Solution
3xx=3
Adding x
3x=3+x
Squaring both sides
3x=(3+x)23x=9+x2+6x
x2+7x+6=0
(x+1)(x+6)=0
x+1=0, x+6=0
x=-6, -1
Check
For x=-3
366
=3+6=93
Not a solution
For x=−1
311
=4+1
=2+1
=3
which is same as right side
Answer: x=−1

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