x(x-2)-(x-3)(x+3)=0

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Solution for x(x-2)-(x-3)(x+3)=0 equation:


Simplifying
x(x + -2) + -1(x + -3)(x + 3) = 0

Reorder the terms:
x(-2 + x) + -1(x + -3)(x + 3) = 0
(-2 * x + x * x) + -1(x + -3)(x + 3) = 0
(-2x + x2) + -1(x + -3)(x + 3) = 0

Reorder the terms:
-2x + x2 + -1(-3 + x)(x + 3) = 0

Reorder the terms:
-2x + x2 + -1(-3 + x)(3 + x) = 0

Multiply (-3 + x) * (3 + x)
-2x + x2 + -1(-3(3 + x) + x(3 + x)) = 0
-2x + x2 + -1((3 * -3 + x * -3) + x(3 + x)) = 0
-2x + x2 + -1((-9 + -3x) + x(3 + x)) = 0
-2x + x2 + -1(-9 + -3x + (3 * x + x * x)) = 0
-2x + x2 + -1(-9 + -3x + (3x + x2)) = 0

Combine like terms: -3x + 3x = 0
-2x + x2 + -1(-9 + 0 + x2) = 0
-2x + x2 + -1(-9 + x2) = 0
-2x + x2 + (-9 * -1 + x2 * -1) = 0
-2x + x2 + (9 + -1x2) = 0

Reorder the terms:
9 + -2x + x2 + -1x2 = 0

Combine like terms: x2 + -1x2 = 0
9 + -2x + 0 = 0
9 + -2x = 0

Solving
9 + -2x = 0

Solving for variable 'x'.

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

Add '-9' to each side of the equation.
9 + -9 + -2x = 0 + -9

Combine like terms: 9 + -9 = 0
0 + -2x = 0 + -9
-2x = 0 + -9

Combine like terms: 0 + -9 = -9
-2x = -9

Divide each side by '-2'.
x = 4.5

Simplifying
x = 4.5

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