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5 votes
Solve (x-3)^2 =5 completing the square

User Prasath V
by
8.6k points

2 Answers

4 votes

Explanation:

There are two ways to solve this equation for x

Either you develop (x-3)^2 and then solve the quadratic equation

Or you can solve it this way :

(X-3)^2= 5

x-3 = + or - root square 5

So x = 3+ or - root square 5

User Anselm
by
8.5k points
3 votes

Answer:

x = 3 ± √5

Explanation:

The expression (x - 3)² = 5 doesn't need completing the square to solve (this is the step after you finish completing the square):

Step 1: Square root both sides

x - 3 = ±√5

Step 2: Add 3 to both sides

x = 3 ± √5 = 0.76392, 5.23607

User Merlina
by
9.0k points

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