X^2-4x-9=0

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Solution for X^2-4x-9=0 equation: 


Simplifying
X2 + -4x + -9 = 0

Reorder the terms:
-9 + X2 + -4x = 0

Solving
-9 + X2 + -4x = 0

Solving for variable 'X'.

Move all terms containing X to the left, all other terms to the right.

Add '9' to each side of the equation.
-9 + X2 + 9 + -4x = 0 + 9

Reorder the terms:
-9 + 9 + X2 + -4x = 0 + 9

Combine like terms: -9 + 9 = 0
0 + X2 + -4x = 0 + 9
X2 + -4x = 0 + 9

Combine like terms: 0 + 9 = 9
X2 + -4x = 9

Add '4x' to each side of the equation.
X2 + -4x + 4x = 9 + 4x

Combine like terms: -4x + 4x = 0
X2 + 0 = 9 + 4x
X2 = 9 + 4x

Simplifying
X2 = 9 + 4x

Reorder the terms:
-9 + X2 + -4x = 9 + 4x + -9 + -4x

Reorder the terms:
-9 + X2 + -4x = 9 + -9 + 4x + -4x

Combine like terms: 9 + -9 = 0
-9 + X2 + -4x = 0 + 4x + -4x
-9 + X2 + -4x = 4x + -4x

Combine like terms: 4x + -4x = 0
-9 + X2 + -4x = 0

The solution to this equation could not be determined.

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