x^2+3x+2.25=-7

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Solution for x^2+3x+2.25=-7 equation:


Simplifying
x2 + 3x + 2.25 = -7

Reorder the terms:
2.25 + 3x + x2 = -7

Solving
2.25 + 3x + x2 = -7

Solving for variable 'x'.

Reorder the terms:
2.25 + 7 + 3x + x2 = -7 + 7

Combine like terms: 2.25 + 7 = 9.25
9.25 + 3x + x2 = -7 + 7

Combine like terms: -7 + 7 = 0
9.25 + 3x + x2 = 0

Begin completing the square.

Move the constant term to the right:

Add '-9.25' to each side of the equation.
9.25 + 3x + -9.25 + x2 = 0 + -9.25

Reorder the terms:
9.25 + -9.25 + 3x + x2 = 0 + -9.25

Combine like terms: 9.25 + -9.25 = 0.00
0.00 + 3x + x2 = 0 + -9.25
3x + x2 = 0 + -9.25

Combine like terms: 0 + -9.25 = -9.25
3x + x2 = -9.25

The x term is 3x.  Take half its coefficient (1.5).
Square it (2.25) and add it to both sides.

Add '2.25' to each side of the equation.
3x + 2.25 + x2 = -9.25 + 2.25

Reorder the terms:
2.25 + 3x + x2 = -9.25 + 2.25

Combine like terms: -9.25 + 2.25 = -7
2.25 + 3x + x2 = -7

Factor a perfect square on the left side:
(x + 1.5)(x + 1.5) = -7

Can't calculate square root of the right side.

The solution to this equation could not be determined.

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