9x+4x^2+5=-4

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Solution for 9x+4x^2+5=-4 equation:


Simplifying
9x + 4x2 + 5 = -4

Reorder the terms:
5 + 9x + 4x2 = -4

Solving
5 + 9x + 4x2 = -4

Solving for variable 'x'.

Reorder the terms:
5 + 4 + 9x + 4x2 = -4 + 4

Combine like terms: 5 + 4 = 9
9 + 9x + 4x2 = -4 + 4

Combine like terms: -4 + 4 = 0
9 + 9x + 4x2 = 0

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

Divide each side by '4'.
2.25 + 2.25x + x2 = 0

Move the constant term to the right:

Add '-2.25' to each side of the equation.
2.25 + 2.25x + -2.25 + x2 = 0 + -2.25

Reorder the terms:
2.25 + -2.25 + 2.25x + x2 = 0 + -2.25

Combine like terms: 2.25 + -2.25 = 0.00
0.00 + 2.25x + x2 = 0 + -2.25
2.25x + x2 = 0 + -2.25

Combine like terms: 0 + -2.25 = -2.25
2.25x + x2 = -2.25

The x term is 2.25x.  Take half its coefficient (1.125).
Square it (1.265625) and add it to both sides.

Add '1.265625' to each side of the equation.
2.25x + 1.265625 + x2 = -2.25 + 1.265625

Reorder the terms:
1.265625 + 2.25x + x2 = -2.25 + 1.265625

Combine like terms: -2.25 + 1.265625 = -0.984375
1.265625 + 2.25x + x2 = -0.984375

Factor a perfect square on the left side:
(x + 1.125)(x + 1.125) = -0.984375

Can't calculate square root of the right side.

The solution to this equation could not be determined.

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