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

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


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

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

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

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

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

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

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

Solving
-3 + x2 = 1

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 + x2 = 1 + 3

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

Combine like terms: 1 + 3 = 4
x2 = 4

Simplifying
x2 = 4

Take the square root of each side:
x = {-2, 2}

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