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Ad libitum [116K]
3 years ago
13

Rewrite the equation by completing the square 4x^2-4x+1=0

Mathematics
2 answers:
oee [108]3 years ago
8 0

Answer:

4(x - \frac{1}{2} )² = 0

Step-by-step explanation:

Given

4x² - 4x + 1 = 0

To complete the square the coefficient of the x² term must be 1

Factor out 4 from 4x² - 4x

= 4(x² - x) + 1 = 0

add/subtract ( half the coefficient of the x- term )² to x² - x

4(x² + 2(- \frac{1}{2} )x + \frac{1}{4} - \frac{1}{4} ) + 1 = 0

4(x - \frac{1}{2} )² - 1 + 1 = 0

4(x - \frac{1}{2} )² = 0

rewona [7]3 years ago
3 0

Answer:

\huge\boxed{(2x-1)^2=0}

Step-by-step explanation:

(a-b)^2=a^2-2ab+b^2\\\\\text{We have:}\\\\4x^2-4x+1=0\\\\(2x)^2-2(2x)(1)+1^2=0\\\\\bold{a=2x,\ b=1}\\\\\text{Therefore we have:}\\\\(2x-1)^2=0

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