(2x-5)(x+1)=3x+1

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Solution for (2x-5)(x+1)=3x+1 equation:


Simplifying
(2x + -5)(x + 1) = 3x + 1

Reorder the terms:
(-5 + 2x)(x + 1) = 3x + 1

Reorder the terms:
(-5 + 2x)(1 + x) = 3x + 1

Multiply (-5 + 2x) * (1 + x)
(-5(1 + x) + 2x * (1 + x)) = 3x + 1
((1 * -5 + x * -5) + 2x * (1 + x)) = 3x + 1
((-5 + -5x) + 2x * (1 + x)) = 3x + 1
(-5 + -5x + (1 * 2x + x * 2x)) = 3x + 1
(-5 + -5x + (2x + 2x2)) = 3x + 1

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

Reorder the terms:
-5 + -3x + 2x2 = 1 + 3x

Solving
-5 + -3x + 2x2 = 1 + 3x

Solving for variable 'x'.

Reorder the terms:
-5 + -1 + -3x + -3x + 2x2 = 1 + 3x + -1 + -3x

Combine like terms: -5 + -1 = -6
-6 + -3x + -3x + 2x2 = 1 + 3x + -1 + -3x

Combine like terms: -3x + -3x = -6x
-6 + -6x + 2x2 = 1 + 3x + -1 + -3x

Reorder the terms:
-6 + -6x + 2x2 = 1 + -1 + 3x + -3x

Combine like terms: 1 + -1 = 0
-6 + -6x + 2x2 = 0 + 3x + -3x
-6 + -6x + 2x2 = 3x + -3x

Combine like terms: 3x + -3x = 0
-6 + -6x + 2x2 = 0

Factor out the Greatest Common Factor (GCF), '2'.
2(-3 + -3x + x2) = 0

Ignore the factor 2.

Subproblem 1

Set the factor '(-3 + -3x + x2)' equal to zero and attempt to solve: Simplifying -3 + -3x + x2 = 0 Solving -3 + -3x + x2 = 0 Begin completing the square. Move the constant term to the right: Add '3' to each side of the equation. -3 + -3x + 3 + x2 = 0 + 3 Reorder the terms: -3 + 3 + -3x + x2 = 0 + 3 Combine like terms: -3 + 3 = 0 0 + -3x + x2 = 0 + 3 -3x + x2 = 0 + 3 Combine like terms: 0 + 3 = 3 -3x + x2 = 3 The x term is -3x. Take half its coefficient (-1.5). Square it (2.25) and add it to both sides. Add '2.25' to each side of the equation. -3x + 2.25 + x2 = 3 + 2.25 Reorder the terms: 2.25 + -3x + x2 = 3 + 2.25 Combine like terms: 3 + 2.25 = 5.25 2.25 + -3x + x2 = 5.25 Factor a perfect square on the left side: (x + -1.5)(x + -1.5) = 5.25 Calculate the square root of the right side: 2.291287847 Break this problem into two subproblems by setting (x + -1.5) equal to 2.291287847 and -2.291287847.

Subproblem 1

x + -1.5 = 2.291287847 Simplifying x + -1.5 = 2.291287847 Reorder the terms: -1.5 + x = 2.291287847 Solving -1.5 + x = 2.291287847 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '1.5' to each side of the equation. -1.5 + 1.5 + x = 2.291287847 + 1.5 Combine like terms: -1.5 + 1.5 = 0.0 0.0 + x = 2.291287847 + 1.5 x = 2.291287847 + 1.5 Combine like terms: 2.291287847 + 1.5 = 3.791287847 x = 3.791287847 Simplifying x = 3.791287847

Subproblem 2

x + -1.5 = -2.291287847 Simplifying x + -1.5 = -2.291287847 Reorder the terms: -1.5 + x = -2.291287847 Solving -1.5 + x = -2.291287847 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '1.5' to each side of the equation. -1.5 + 1.5 + x = -2.291287847 + 1.5 Combine like terms: -1.5 + 1.5 = 0.0 0.0 + x = -2.291287847 + 1.5 x = -2.291287847 + 1.5 Combine like terms: -2.291287847 + 1.5 = -0.791287847 x = -0.791287847 Simplifying x = -0.791287847

Solution

The solution to the problem is based on the solutions from the subproblems. x = {3.791287847, -0.791287847}

Solution

x = {3.791287847, -0.791287847}

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