x(x+1)=3+(2+x)x

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Solution for x(x+1)=3+(2+x)x equation:


Simplifying
x(x + 1) = 3 + (2 + x) * x

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

Reorder the terms for easier multiplication:
1x + x2 = 3 + x(2 + x)
1x + x2 = 3 + (2 * x + x * x)
1x + x2 = 3 + (2x + x2)

Add '-1x2' to each side of the equation.
1x + x2 + -1x2 = 3 + 2x + x2 + -1x2

Combine like terms: x2 + -1x2 = 0
1x + 0 = 3 + 2x + x2 + -1x2
1x = 3 + 2x + x2 + -1x2

Combine like terms: x2 + -1x2 = 0
1x = 3 + 2x + 0
1x = 3 + 2x

Solving
1x = 3 + 2x

Solving for variable 'x'.

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

Add '-2x' to each side of the equation.
1x + -2x = 3 + 2x + -2x

Combine like terms: 1x + -2x = -1x
-1x = 3 + 2x + -2x

Combine like terms: 2x + -2x = 0
-1x = 3 + 0
-1x = 3

Divide each side by '-1'.
x = -3

Simplifying
x = -3

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