(X+3)2-8X-9=0

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Solution for (X+3)2-8X-9=0 equation:


Simplifying
(X + 3) * 2 + -8X + -9 = 0

Reorder the terms:
(3 + X) * 2 + -8X + -9 = 0

Reorder the terms for easier multiplication:
2(3 + X) + -8X + -9 = 0
(3 * 2 + X * 2) + -8X + -9 = 0
(6 + 2X) + -8X + -9 = 0

Reorder the terms:
6 + -9 + 2X + -8X = 0

Combine like terms: 6 + -9 = -3
-3 + 2X + -8X = 0

Combine like terms: 2X + -8X = -6X
-3 + -6X = 0

Solving
-3 + -6X = 0

Solving for variable 'X'.

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

Add '3' to each side of the equation.
-3 + 3 + -6X = 0 + 3

Combine like terms: -3 + 3 = 0
0 + -6X = 0 + 3
-6X = 0 + 3

Combine like terms: 0 + 3 = 3
-6X = 3

Divide each side by '-6'.
X = -0.5

Simplifying
X = -0.5

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