4+3(x^2+1)-2x(x-2)=

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Solution for 4+3(x^2+1)-2x(x-2)= equation:


Simplifying
4 + 3(x2 + 1) + -2x(x + -2) = 0

Reorder the terms:
4 + 3(1 + x2) + -2x(x + -2) = 0
4 + (1 * 3 + x2 * 3) + -2x(x + -2) = 0
4 + (3 + 3x2) + -2x(x + -2) = 0

Reorder the terms:
4 + 3 + 3x2 + -2x(-2 + x) = 0
4 + 3 + 3x2 + (-2 * -2x + x * -2x) = 0
4 + 3 + 3x2 + (4x + -2x2) = 0

Reorder the terms:
4 + 3 + 4x + 3x2 + -2x2 = 0

Combine like terms: 4 + 3 = 7
7 + 4x + 3x2 + -2x2 = 0

Combine like terms: 3x2 + -2x2 = 1x2
7 + 4x + 1x2 = 0

Solving
7 + 4x + 1x2 = 0

Solving for variable 'x'.

Begin completing the square.

Move the constant term to the right:

Add '-7' to each side of the equation.
7 + 4x + -7 + x2 = 0 + -7

Reorder the terms:
7 + -7 + 4x + x2 = 0 + -7

Combine like terms: 7 + -7 = 0
0 + 4x + x2 = 0 + -7
4x + x2 = 0 + -7

Combine like terms: 0 + -7 = -7
4x + x2 = -7

The x term is 4x.  Take half its coefficient (2).
Square it (4) and add it to both sides.

Add '4' to each side of the equation.
4x + 4 + x2 = -7 + 4

Reorder the terms:
4 + 4x + x2 = -7 + 4

Combine like terms: -7 + 4 = -3
4 + 4x + x2 = -3

Factor a perfect square on the left side:
(x + 2)(x + 2) = -3

Can't calculate square root of the right side.

The solution to this equation could not be determined.

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