-x^2-11X-28=0

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Solution for -x^2-11X-28=0 equation: 


Simplifying
-1x2 + -11X + -28 = 0

Reorder the terms:
-28 + -11X + -1x2 = 0

Solving
-28 + -11X + -1x2 = 0

Solving for variable 'X'.

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

Add '28' to each side of the equation.
-28 + -11X + 28 + -1x2 = 0 + 28

Reorder the terms:
-28 + 28 + -11X + -1x2 = 0 + 28

Combine like terms: -28 + 28 = 0
0 + -11X + -1x2 = 0 + 28
-11X + -1x2 = 0 + 28

Combine like terms: 0 + 28 = 28
-11X + -1x2 = 28

Add 'x2' to each side of the equation.
-11X + -1x2 + x2 = 28 + x2

Combine like terms: -1x2 + x2 = 0
-11X + 0 = 28 + x2
-11X = 28 + x2

Divide each side by '-11'.
X = -2.545454545 + -0.09090909091x2

Simplifying
X = -2.545454545 + -0.09090909091x2

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