4x^2+3x+9=8

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Solution for 4x^2+3x+9=8 equation:


Simplifying
4x2 + 3x + 9 = 8

Reorder the terms:
9 + 3x + 4x2 = 8

Solving
9 + 3x + 4x2 = 8

Solving for variable 'x'.

Reorder the terms:
9 + -8 + 3x + 4x2 = 8 + -8

Combine like terms: 9 + -8 = 1
1 + 3x + 4x2 = 8 + -8

Combine like terms: 8 + -8 = 0
1 + 3x + 4x2 = 0

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

Divide each side by '4'.
0.25 + 0.75x + x2 = 0

Move the constant term to the right:

Add '-0.25' to each side of the equation.
0.25 + 0.75x + -0.25 + x2 = 0 + -0.25

Reorder the terms:
0.25 + -0.25 + 0.75x + x2 = 0 + -0.25

Combine like terms: 0.25 + -0.25 = 0.00
0.00 + 0.75x + x2 = 0 + -0.25
0.75x + x2 = 0 + -0.25

Combine like terms: 0 + -0.25 = -0.25
0.75x + x2 = -0.25

The x term is 0.75x.  Take half its coefficient (0.375).
Square it (0.140625) and add it to both sides.

Add '0.140625' to each side of the equation.
0.75x + 0.140625 + x2 = -0.25 + 0.140625

Reorder the terms:
0.140625 + 0.75x + x2 = -0.25 + 0.140625

Combine like terms: -0.25 + 0.140625 = -0.109375
0.140625 + 0.75x + x2 = -0.109375

Factor a perfect square on the left side:
(x + 0.375)(x + 0.375) = -0.109375

Can't calculate square root of the right side.

The solution to this equation could not be determined.

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