SOLUTION: 7-sqrt(x2 − 3x)=sqrt((x2 − 3x) + 5)
Step 1: Assume that we can represent (x2-3x) by u.
Step 2: Rewrite the equation with u.
Step 3: Solve the reduced equation given
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Question 472213: 7-sqrt(x2 − 3x)=sqrt((x2 − 3x) + 5)
Step 1: Assume that we can represent (x2-3x) by u.
Step 2: Rewrite the equation with u.
Step 3: Solve the reduced equation given in Step 2 and replace u with the expression given in Step 1.
Step 4: What are the solutions of the original equation?
**sqrt=square root
Answer by ccs2011(207) (Show Source): You can put this solution on YOUR website!
u =
Square both sides
Subtract u on both sides
Subtract 49 on both sides
Divide by -14 on both sides
Square both sides
Replace u with equivalent expression
Set equation equal to zero
Use quadratic formula to solve for x:
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