28=(2x+1)x

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Solution for 28=(2x+1)x equation:


Simplifying
28 = (2x + 1) * x

Reorder the terms:
28 = (1 + 2x) * x

Reorder the terms for easier multiplication:
28 = x(1 + 2x)
28 = (1 * x + 2x * x)
28 = (1x + 2x2)

Solving
28 = 1x + 2x2

Solving for variable 'x'.

Reorder the terms:
28 + -1x + -2x2 = 1x + -1x + 2x2 + -2x2

Combine like terms: 1x + -1x = 0
28 + -1x + -2x2 = 0 + 2x2 + -2x2
28 + -1x + -2x2 = 2x2 + -2x2

Combine like terms: 2x2 + -2x2 = 0
28 + -1x + -2x2 = 0

Factor a trinomial.
(7 + -2x)(4 + x) = 0

Subproblem 1

Set the factor '(7 + -2x)' equal to zero and attempt to solve: Simplifying 7 + -2x = 0 Solving 7 + -2x = 0 Move all terms containing x to the left, all other terms to the right. Add '-7' to each side of the equation. 7 + -7 + -2x = 0 + -7 Combine like terms: 7 + -7 = 0 0 + -2x = 0 + -7 -2x = 0 + -7 Combine like terms: 0 + -7 = -7 -2x = -7 Divide each side by '-2'. x = 3.5 Simplifying x = 3.5

Subproblem 2

Set the factor '(4 + x)' equal to zero and attempt to solve: Simplifying 4 + x = 0 Solving 4 + x = 0 Move all terms containing x to the left, all other terms to the right. Add '-4' to each side of the equation. 4 + -4 + x = 0 + -4 Combine like terms: 4 + -4 = 0 0 + x = 0 + -4 x = 0 + -4 Combine like terms: 0 + -4 = -4 x = -4 Simplifying x = -4

Solution

x = {3.5, -4}

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