0=4x^4-12x^3+9x^2

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Solution for 0=4x^4-12x^3+9x^2 equation:


Simplifying
0 = 4x4 + -12x3 + 9x2

Reorder the terms:
0 = 9x2 + -12x3 + 4x4

Solving
0 = 9x2 + -12x3 + 4x4

Solving for variable 'x'.
Remove the zero:
-9x2 + 12x3 + -4x4 = 9x2 + -12x3 + 4x4 + -9x2 + 12x3 + -4x4

Reorder the terms:
-9x2 + 12x3 + -4x4 = 9x2 + -9x2 + -12x3 + 12x3 + 4x4 + -4x4

Combine like terms: 9x2 + -9x2 = 0
-9x2 + 12x3 + -4x4 = 0 + -12x3 + 12x3 + 4x4 + -4x4
-9x2 + 12x3 + -4x4 = -12x3 + 12x3 + 4x4 + -4x4

Combine like terms: -12x3 + 12x3 = 0
-9x2 + 12x3 + -4x4 = 0 + 4x4 + -4x4
-9x2 + 12x3 + -4x4 = 4x4 + -4x4

Combine like terms: 4x4 + -4x4 = 0
-9x2 + 12x3 + -4x4 = 0

Factor out the Greatest Common Factor (GCF), 'x2'.
x2(-9 + 12x + -4x2) = 0

Factor a trinomial.
x2((-3 + 2x)(3 + -2x)) = 0

Subproblem 1

Set the factor 'x2' equal to zero and attempt to solve: Simplifying x2 = 0 Solving x2 = 0 Move all terms containing x to the left, all other terms to the right. Simplifying x2 = 0 Take the square root of each side: x = {0}

Subproblem 2

Set the factor '(-3 + 2x)' equal to zero and attempt to solve: Simplifying -3 + 2x = 0 Solving -3 + 2x = 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 + 2x = 0 + 3 Combine like terms: -3 + 3 = 0 0 + 2x = 0 + 3 2x = 0 + 3 Combine like terms: 0 + 3 = 3 2x = 3 Divide each side by '2'. x = 1.5 Simplifying x = 1.5

Subproblem 3

Set the factor '(3 + -2x)' equal to zero and attempt to solve: Simplifying 3 + -2x = 0 Solving 3 + -2x = 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 + -2x = 0 + -3 Combine like terms: 3 + -3 = 0 0 + -2x = 0 + -3 -2x = 0 + -3 Combine like terms: 0 + -3 = -3 -2x = -3 Divide each side by '-2'. x = 1.5 Simplifying x = 1.5

Solution

x = {0, 1.5, 1.5}

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