3x^2=25x+18

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Solution for 3x^2=25x+18 equation:


Simplifying
3x2 = 25x + 18

Reorder the terms:
3x2 = 18 + 25x

Solving
3x2 = 18 + 25x

Solving for variable 'x'.

Reorder the terms:
-18 + -25x + 3x2 = 18 + 25x + -18 + -25x

Reorder the terms:
-18 + -25x + 3x2 = 18 + -18 + 25x + -25x

Combine like terms: 18 + -18 = 0
-18 + -25x + 3x2 = 0 + 25x + -25x
-18 + -25x + 3x2 = 25x + -25x

Combine like terms: 25x + -25x = 0
-18 + -25x + 3x2 = 0

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

Subproblem 1

Set the factor '(-2 + -3x)' equal to zero and attempt to solve: Simplifying -2 + -3x = 0 Solving -2 + -3x = 0 Move all terms containing x to the left, all other terms to the right. Add '2' to each side of the equation. -2 + 2 + -3x = 0 + 2 Combine like terms: -2 + 2 = 0 0 + -3x = 0 + 2 -3x = 0 + 2 Combine like terms: 0 + 2 = 2 -3x = 2 Divide each side by '-3'. x = -0.6666666667 Simplifying x = -0.6666666667

Subproblem 2

Set the factor '(9 + -1x)' equal to zero and attempt to solve: Simplifying 9 + -1x = 0 Solving 9 + -1x = 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 + -1x = 0 + -9 Combine like terms: 9 + -9 = 0 0 + -1x = 0 + -9 -1x = 0 + -9 Combine like terms: 0 + -9 = -9 -1x = -9 Divide each side by '-1'. x = 9 Simplifying x = 9

Solution

x = {-0.6666666667, 9}

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