3x^2-21x+5x-35=0

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Solution for 3x^2-21x+5x-35=0 equation:


Simplifying
3x2 + -21x + 5x + -35 = 0

Reorder the terms:
-35 + -21x + 5x + 3x2 = 0

Combine like terms: -21x + 5x = -16x
-35 + -16x + 3x2 = 0

Solving
-35 + -16x + 3x2 = 0

Solving for variable 'x'.

Factor a trinomial.
(-5 + -3x)(7 + -1x) = 0

Subproblem 1

Set the factor '(-5 + -3x)' equal to zero and attempt to solve: Simplifying -5 + -3x = 0 Solving -5 + -3x = 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 + -3x = 0 + 5 Combine like terms: -5 + 5 = 0 0 + -3x = 0 + 5 -3x = 0 + 5 Combine like terms: 0 + 5 = 5 -3x = 5 Divide each side by '-3'. x = -1.666666667 Simplifying x = -1.666666667

Subproblem 2

Set the factor '(7 + -1x)' equal to zero and attempt to solve: Simplifying 7 + -1x = 0 Solving 7 + -1x = 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 + -1x = 0 + -7 Combine like terms: 7 + -7 = 0 0 + -1x = 0 + -7 -1x = 0 + -7 Combine like terms: 0 + -7 = -7 -1x = -7 Divide each side by '-1'. x = 7 Simplifying x = 7

Solution

x = {-1.666666667, 7}

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