2x^2+X-21=o

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Solution for 2x^2+X-21=o equation:


Simplifying
2x2 + X + -21 = o

Reorder the terms:
-21 + X + 2x2 = o

Solving
-21 + X + 2x2 = o

Solving for variable 'X'.

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

Add '21' to each side of the equation.
-21 + X + 21 + 2x2 = 21 + o

Reorder the terms:
-21 + 21 + X + 2x2 = 21 + o

Combine like terms: -21 + 21 = 0
0 + X + 2x2 = 21 + o
X + 2x2 = 21 + o

Add '-2x2' to each side of the equation.
X + 2x2 + -2x2 = 21 + o + -2x2

Combine like terms: 2x2 + -2x2 = 0
X + 0 = 21 + o + -2x2
X = 21 + o + -2x2

Simplifying
X = 21 + o + -2x2

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