4x^2-21x+43=6x+8

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Solution for 4x^2-21x+43=6x+8 equation:


Simplifying
4x2 + -21x + 43 = 6x + 8

Reorder the terms:
43 + -21x + 4x2 = 6x + 8

Reorder the terms:
43 + -21x + 4x2 = 8 + 6x

Solving
43 + -21x + 4x2 = 8 + 6x

Solving for variable 'x'.

Reorder the terms:
43 + -8 + -21x + -6x + 4x2 = 8 + 6x + -8 + -6x

Combine like terms: 43 + -8 = 35
35 + -21x + -6x + 4x2 = 8 + 6x + -8 + -6x

Combine like terms: -21x + -6x = -27x
35 + -27x + 4x2 = 8 + 6x + -8 + -6x

Reorder the terms:
35 + -27x + 4x2 = 8 + -8 + 6x + -6x

Combine like terms: 8 + -8 = 0
35 + -27x + 4x2 = 0 + 6x + -6x
35 + -27x + 4x2 = 6x + -6x

Combine like terms: 6x + -6x = 0
35 + -27x + 4x2 = 0

Factor a trinomial.
(7 + -4x)(5 + -1x) = 0

Subproblem 1

Set the factor '(7 + -4x)' equal to zero and attempt to solve: Simplifying 7 + -4x = 0 Solving 7 + -4x = 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 + -4x = 0 + -7 Combine like terms: 7 + -7 = 0 0 + -4x = 0 + -7 -4x = 0 + -7 Combine like terms: 0 + -7 = -7 -4x = -7 Divide each side by '-4'. x = 1.75 Simplifying x = 1.75

Subproblem 2

Set the factor '(5 + -1x)' equal to zero and attempt to solve: Simplifying 5 + -1x = 0 Solving 5 + -1x = 0 Move all terms containing x to the left, all other terms to the right. Add '-5' to each side of the equation. 5 + -5 + -1x = 0 + -5 Combine like terms: 5 + -5 = 0 0 + -1x = 0 + -5 -1x = 0 + -5 Combine like terms: 0 + -5 = -5 -1x = -5 Divide each side by '-1'. x = 5 Simplifying x = 5

Solution

x = {1.75, 5}

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