X^2-3x-840=0

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Solution for X^2-3x-840=0 equation:


Simplifying
X2 + -3x + -840 = 0

Reorder the terms:
-840 + X2 + -3x = 0

Solving
-840 + X2 + -3x = 0

Solving for variable 'X'.

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

Add '840' to each side of the equation.
-840 + X2 + 840 + -3x = 0 + 840

Reorder the terms:
-840 + 840 + X2 + -3x = 0 + 840

Combine like terms: -840 + 840 = 0
0 + X2 + -3x = 0 + 840
X2 + -3x = 0 + 840

Combine like terms: 0 + 840 = 840
X2 + -3x = 840

Add '3x' to each side of the equation.
X2 + -3x + 3x = 840 + 3x

Combine like terms: -3x + 3x = 0
X2 + 0 = 840 + 3x
X2 = 840 + 3x

Simplifying
X2 = 840 + 3x

Reorder the terms:
-840 + X2 + -3x = 840 + 3x + -840 + -3x

Reorder the terms:
-840 + X2 + -3x = 840 + -840 + 3x + -3x

Combine like terms: 840 + -840 = 0
-840 + X2 + -3x = 0 + 3x + -3x
-840 + X2 + -3x = 3x + -3x

Combine like terms: 3x + -3x = 0
-840 + X2 + -3x = 0

The solution to this equation could not be determined.

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