3x(5x^2-x+4)=

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Solution for 3x(5x^2-x+4)= equation:


Simplifying
3x(5x2 + -1x + 4) = 0

Reorder the terms:
3x(4 + -1x + 5x2) = 0
(4 * 3x + -1x * 3x + 5x2 * 3x) = 0
(12x + -3x2 + 15x3) = 0

Solving
12x + -3x2 + 15x3 = 0

Solving for variable 'x'.

Factor out the Greatest Common Factor (GCF), '3x'.
3x(4 + -1x + 5x2) = 0

Ignore the factor 3.

Subproblem 1

Set the factor 'x' equal to zero and attempt to solve: Simplifying x = 0 Solving x = 0 Move all terms containing x to the left, all other terms to the right. Simplifying x = 0

Subproblem 2

Set the factor '(4 + -1x + 5x2)' equal to zero and attempt to solve: Simplifying 4 + -1x + 5x2 = 0 Solving 4 + -1x + 5x2 = 0 Begin completing the square. Divide all terms by 5 the coefficient of the squared term: Divide each side by '5'. 0.8 + -0.2x + x2 = 0 Move the constant term to the right: Add '-0.8' to each side of the equation. 0.8 + -0.2x + -0.8 + x2 = 0 + -0.8 Reorder the terms: 0.8 + -0.8 + -0.2x + x2 = 0 + -0.8 Combine like terms: 0.8 + -0.8 = 0.0 0.0 + -0.2x + x2 = 0 + -0.8 -0.2x + x2 = 0 + -0.8 Combine like terms: 0 + -0.8 = -0.8 -0.2x + x2 = -0.8 The x term is -0.2x. Take half its coefficient (-0.1). Square it (0.01) and add it to both sides. Add '0.01' to each side of the equation. -0.2x + 0.01 + x2 = -0.8 + 0.01 Reorder the terms: 0.01 + -0.2x + x2 = -0.8 + 0.01 Combine like terms: -0.8 + 0.01 = -0.79 0.01 + -0.2x + x2 = -0.79 Factor a perfect square on the left side: (x + -0.1)(x + -0.1) = -0.79 Can't calculate square root of the right side. The solution to this equation could not be determined. This subproblem is being ignored because a solution could not be determined.

Solution

x = {0}

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