9a^2+4=2a

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Solution for 9a^2+4=2a equation:


Simplifying
9a2 + 4 = 2a

Reorder the terms:
4 + 9a2 = 2a

Solving
4 + 9a2 = 2a

Solving for variable 'a'.

Reorder the terms:
4 + -2a + 9a2 = 2a + -2a

Combine like terms: 2a + -2a = 0
4 + -2a + 9a2 = 0

Begin completing the square.  Divide all terms by
9 the coefficient of the squared term: 

Divide each side by '9'.
0.4444444444 + -0.2222222222a + a2 = 0

Move the constant term to the right:

Add '-0.4444444444' to each side of the equation.
0.4444444444 + -0.2222222222a + -0.4444444444 + a2 = 0 + -0.4444444444

Reorder the terms:
0.4444444444 + -0.4444444444 + -0.2222222222a + a2 = 0 + -0.4444444444

Combine like terms: 0.4444444444 + -0.4444444444 = 0.0000000000
0.0000000000 + -0.2222222222a + a2 = 0 + -0.4444444444
-0.2222222222a + a2 = 0 + -0.4444444444

Combine like terms: 0 + -0.4444444444 = -0.4444444444
-0.2222222222a + a2 = -0.4444444444

The a term is -0.2222222222a.  Take half its coefficient (-0.1111111111).
Square it (0.01234567901) and add it to both sides.

Add '0.01234567901' to each side of the equation.
-0.2222222222a + 0.01234567901 + a2 = -0.4444444444 + 0.01234567901

Reorder the terms:
0.01234567901 + -0.2222222222a + a2 = -0.4444444444 + 0.01234567901

Combine like terms: -0.4444444444 + 0.01234567901 = -0.43209876539
0.01234567901 + -0.2222222222a + a2 = -0.43209876539

Factor a perfect square on the left side:
(a + -0.1111111111)(a + -0.1111111111) = -0.43209876539

Can't calculate square root of the right side.

The solution to this equation could not be determined.

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