X^2+13=3X+4

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Solution for X^2+13=3X+4 equation:


Simplifying
X2 + 13 = 3X + 4

Reorder the terms:
13 + X2 = 3X + 4

Reorder the terms:
13 + X2 = 4 + 3X

Solving
13 + X2 = 4 + 3X

Solving for variable 'X'.

Reorder the terms:
13 + -4 + -3X + X2 = 4 + 3X + -4 + -3X

Combine like terms: 13 + -4 = 9
9 + -3X + X2 = 4 + 3X + -4 + -3X

Reorder the terms:
9 + -3X + X2 = 4 + -4 + 3X + -3X

Combine like terms: 4 + -4 = 0
9 + -3X + X2 = 0 + 3X + -3X
9 + -3X + X2 = 3X + -3X

Combine like terms: 3X + -3X = 0
9 + -3X + X2 = 0

Begin completing the square.

Move the constant term to the right:

Add '-9' to each side of the equation.
9 + -3X + -9 + X2 = 0 + -9

Reorder the terms:
9 + -9 + -3X + X2 = 0 + -9

Combine like terms: 9 + -9 = 0
0 + -3X + X2 = 0 + -9
-3X + X2 = 0 + -9

Combine like terms: 0 + -9 = -9
-3X + X2 = -9

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 + 2.25

Reorder the terms:
2.25 + -3X + X2 = -9 + 2.25

Combine like terms: -9 + 2.25 = -6.75
2.25 + -3X + X2 = -6.75

Factor a perfect square on the left side:
(X + -1.5)(X + -1.5) = -6.75

Can't calculate square root of the right side.

The solution to this equation could not be determined.

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