(x-1)(2x-1)=28

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


Simplifying
(x + -1)(2x + -1) = 28

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

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

Multiply (-1 + x) * (-1 + 2x)
(-1(-1 + 2x) + x(-1 + 2x)) = 28
((-1 * -1 + 2x * -1) + x(-1 + 2x)) = 28
((1 + -2x) + x(-1 + 2x)) = 28
(1 + -2x + (-1 * x + 2x * x)) = 28
(1 + -2x + (-1x + 2x2)) = 28

Combine like terms: -2x + -1x = -3x
(1 + -3x + 2x2) = 28

Solving
1 + -3x + 2x2 = 28

Solving for variable 'x'.

Reorder the terms:
1 + -28 + -3x + 2x2 = 28 + -28

Combine like terms: 1 + -28 = -27
-27 + -3x + 2x2 = 28 + -28

Combine like terms: 28 + -28 = 0
-27 + -3x + 2x2 = 0

Factor a trinomial.
(-3 + -1x)(9 + -2x) = 0

Subproblem 1

Set the factor '(-3 + -1x)' equal to zero and attempt to solve: Simplifying -3 + -1x = 0 Solving -3 + -1x = 0 Move all terms containing x to the left, all other terms to the right. Add '3' to each side of the equation. -3 + 3 + -1x = 0 + 3 Combine like terms: -3 + 3 = 0 0 + -1x = 0 + 3 -1x = 0 + 3 Combine like terms: 0 + 3 = 3 -1x = 3 Divide each side by '-1'. x = -3 Simplifying x = -3

Subproblem 2

Set the factor '(9 + -2x)' equal to zero and attempt to solve: Simplifying 9 + -2x = 0 Solving 9 + -2x = 0 Move all terms containing x to the left, all other terms to the right. Add '-9' to each side of the equation. 9 + -9 + -2x = 0 + -9 Combine like terms: 9 + -9 = 0 0 + -2x = 0 + -9 -2x = 0 + -9 Combine like terms: 0 + -9 = -9 -2x = -9 Divide each side by '-2'. x = 4.5 Simplifying x = 4.5

Solution

x = {-3, 4.5}

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