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

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


Simplifying
3x + (x + -1)(x + 3) = x2 + 2

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

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

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

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

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

Combine like terms: 3x + 2x = 5x
-3 + 5x + x2 = x2 + 2

Reorder the terms:
-3 + 5x + x2 = 2 + x2

Add '-1x2' to each side of the equation.
-3 + 5x + x2 + -1x2 = 2 + x2 + -1x2

Combine like terms: x2 + -1x2 = 0
-3 + 5x + 0 = 2 + x2 + -1x2
-3 + 5x = 2 + x2 + -1x2

Combine like terms: x2 + -1x2 = 0
-3 + 5x = 2 + 0
-3 + 5x = 2

Solving
-3 + 5x = 2

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 + 5x = 2 + 3

Combine like terms: -3 + 3 = 0
0 + 5x = 2 + 3
5x = 2 + 3

Combine like terms: 2 + 3 = 5
5x = 5

Divide each side by '5'.
x = 1

Simplifying
x = 1

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