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

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


Simplifying
x = (4x + 3)(2x + 1)

Reorder the terms:
x = (3 + 4x)(2x + 1)

Reorder the terms:
x = (3 + 4x)(1 + 2x)

Multiply (3 + 4x) * (1 + 2x)
x = (3(1 + 2x) + 4x * (1 + 2x))
x = ((1 * 3 + 2x * 3) + 4x * (1 + 2x))
x = ((3 + 6x) + 4x * (1 + 2x))
x = (3 + 6x + (1 * 4x + 2x * 4x))
x = (3 + 6x + (4x + 8x2))

Combine like terms: 6x + 4x = 10x
x = (3 + 10x + 8x2)

Solving
x = 3 + 10x + 8x2

Solving for variable 'x'.

Reorder the terms:
-3 + x + -10x + -8x2 = 3 + 10x + 8x2 + -3 + -10x + -8x2

Combine like terms: x + -10x = -9x
-3 + -9x + -8x2 = 3 + 10x + 8x2 + -3 + -10x + -8x2

Reorder the terms:
-3 + -9x + -8x2 = 3 + -3 + 10x + -10x + 8x2 + -8x2

Combine like terms: 3 + -3 = 0
-3 + -9x + -8x2 = 0 + 10x + -10x + 8x2 + -8x2
-3 + -9x + -8x2 = 10x + -10x + 8x2 + -8x2

Combine like terms: 10x + -10x = 0
-3 + -9x + -8x2 = 0 + 8x2 + -8x2
-3 + -9x + -8x2 = 8x2 + -8x2

Combine like terms: 8x2 + -8x2 = 0
-3 + -9x + -8x2 = 0

Factor out the Greatest Common Factor (GCF), '-1'.
-1(3 + 9x + 8x2) = 0

Ignore the factor -1.

Subproblem 1

Set the factor '(3 + 9x + 8x2)' equal to zero and attempt to solve: Simplifying 3 + 9x + 8x2 = 0 Solving 3 + 9x + 8x2 = 0 Begin completing the square. Divide all terms by 8 the coefficient of the squared term: Divide each side by '8'. 0.375 + 1.125x + x2 = 0 Move the constant term to the right: Add '-0.375' to each side of the equation. 0.375 + 1.125x + -0.375 + x2 = 0 + -0.375 Reorder the terms: 0.375 + -0.375 + 1.125x + x2 = 0 + -0.375 Combine like terms: 0.375 + -0.375 = 0.000 0.000 + 1.125x + x2 = 0 + -0.375 1.125x + x2 = 0 + -0.375 Combine like terms: 0 + -0.375 = -0.375 1.125x + x2 = -0.375 The x term is 1.125x. Take half its coefficient (0.5625). Square it (0.31640625) and add it to both sides. Add '0.31640625' to each side of the equation. 1.125x + 0.31640625 + x2 = -0.375 + 0.31640625 Reorder the terms: 0.31640625 + 1.125x + x2 = -0.375 + 0.31640625 Combine like terms: -0.375 + 0.31640625 = -0.05859375 0.31640625 + 1.125x + x2 = -0.05859375 Factor a perfect square on the left side: (x + 0.5625)(x + 0.5625) = -0.05859375 Can't calculate square root of the right side. The solution to this equation could not be determined. This subproblem is being ignored because a solution could not be determined. The solution to this equation could not be determined.

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