0=9x^2-61x+42

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Solution for 0=9x^2-61x+42 equation:


Simplifying
0 = 9x2 + -61x + 42

Reorder the terms:
0 = 42 + -61x + 9x2

Solving
0 = 42 + -61x + 9x2

Solving for variable 'x'.

Combine like terms: 0 + -42 = -42
-42 + 61x + -9x2 = 42 + -61x + 9x2 + -42 + 61x + -9x2

Reorder the terms:
-42 + 61x + -9x2 = 42 + -42 + -61x + 61x + 9x2 + -9x2

Combine like terms: 42 + -42 = 0
-42 + 61x + -9x2 = 0 + -61x + 61x + 9x2 + -9x2
-42 + 61x + -9x2 = -61x + 61x + 9x2 + -9x2

Combine like terms: -61x + 61x = 0
-42 + 61x + -9x2 = 0 + 9x2 + -9x2
-42 + 61x + -9x2 = 9x2 + -9x2

Combine like terms: 9x2 + -9x2 = 0
-42 + 61x + -9x2 = 0

Factor a trinomial.
(-6 + x)(7 + -9x) = 0

Subproblem 1

Set the factor '(-6 + x)' equal to zero and attempt to solve: Simplifying -6 + x = 0 Solving -6 + x = 0 Move all terms containing x to the left, all other terms to the right. Add '6' to each side of the equation. -6 + 6 + x = 0 + 6 Combine like terms: -6 + 6 = 0 0 + x = 0 + 6 x = 0 + 6 Combine like terms: 0 + 6 = 6 x = 6 Simplifying x = 6

Subproblem 2

Set the factor '(7 + -9x)' equal to zero and attempt to solve: Simplifying 7 + -9x = 0 Solving 7 + -9x = 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 + -9x = 0 + -7 Combine like terms: 7 + -7 = 0 0 + -9x = 0 + -7 -9x = 0 + -7 Combine like terms: 0 + -7 = -7 -9x = -7 Divide each side by '-9'. x = 0.7777777778 Simplifying x = 0.7777777778

Solution

x = {6, 0.7777777778}

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