X^2+2.5x=21

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Solution for X^2+2.5x=21 equation: 


Simplifying
X2 + 2.5x = 21

Solving
X2 + 2.5x = 21

Solving for variable 'X'.

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

Add '-2.5x' to each side of the equation.
X2 + 2.5x + -2.5x = 21 + -2.5x

Combine like terms: 2.5x + -2.5x = 0.0
X2 + 0.0 = 21 + -2.5x
X2 = 21 + -2.5x

Simplifying
X2 = 21 + -2.5x

Reorder the terms:
-21 + X2 + 2.5x = 21 + -2.5x + -21 + 2.5x

Reorder the terms:
-21 + X2 + 2.5x = 21 + -21 + -2.5x + 2.5x

Combine like terms: 21 + -21 = 0
-21 + X2 + 2.5x = 0 + -2.5x + 2.5x
-21 + X2 + 2.5x = -2.5x + 2.5x

Combine like terms: -2.5x + 2.5x = 0.0
-21 + X2 + 2.5x = 0.0

The solution to this equation could not be determined.

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