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4 votes
Solve the equation by completing the square. X^2-4x+4=9

User Sona Das
by
3.7k points

2 Answers

3 votes

Answer:

-1, 5

Explanation:

See the steps below:)

Solve the equation by completing the square. X^2-4x+4=9-example-1
User Kheil
by
3.1k points
6 votes

Answer:

x =5 x =-1

Explanation:

X^2-4x+4=9

(x-2)^2 = 9

Take the square root of each side

sqrt((x-2)^2) = sqrt(9)

x-2 = ±3

Add 2 to each side

x-2+2 = 2±3

x = 2+3 x =2-3

x =5 x =-1

User Hcharge
by
3.6k points