y(7y^2-2y-3)=0

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Solution for y(7y^2-2y-3)=0 equation:


Simplifying
y(7y2 + -2y + -3) = 0

Reorder the terms:
y(-3 + -2y + 7y2) = 0
(-3 * y + -2y * y + 7y2 * y) = 0
(-3y + -2y2 + 7y3) = 0

Solving
-3y + -2y2 + 7y3 = 0

Solving for variable 'y'.

Factor out the Greatest Common Factor (GCF), 'y'.
y(-3 + -2y + 7y2) = 0

Subproblem 1

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

Subproblem 2

Set the factor '(-3 + -2y + 7y2)' equal to zero and attempt to solve: Simplifying -3 + -2y + 7y2 = 0 Solving -3 + -2y + 7y2 = 0 Begin completing the square. Divide all terms by 7 the coefficient of the squared term: Divide each side by '7'. -0.4285714286 + -0.2857142857y + y2 = 0 Move the constant term to the right: Add '0.4285714286' to each side of the equation. -0.4285714286 + -0.2857142857y + 0.4285714286 + y2 = 0 + 0.4285714286 Reorder the terms: -0.4285714286 + 0.4285714286 + -0.2857142857y + y2 = 0 + 0.4285714286 Combine like terms: -0.4285714286 + 0.4285714286 = 0.0000000000 0.0000000000 + -0.2857142857y + y2 = 0 + 0.4285714286 -0.2857142857y + y2 = 0 + 0.4285714286 Combine like terms: 0 + 0.4285714286 = 0.4285714286 -0.2857142857y + y2 = 0.4285714286 The y term is -0.2857142857y. Take half its coefficient (-0.1428571429). Square it (0.02040816328) and add it to both sides. Add '0.02040816328' to each side of the equation. -0.2857142857y + 0.02040816328 + y2 = 0.4285714286 + 0.02040816328 Reorder the terms: 0.02040816328 + -0.2857142857y + y2 = 0.4285714286 + 0.02040816328 Combine like terms: 0.4285714286 + 0.02040816328 = 0.44897959188 0.02040816328 + -0.2857142857y + y2 = 0.44897959188 Factor a perfect square on the left side: (y + -0.1428571429)(y + -0.1428571429) = 0.44897959188 Calculate the square root of the right side: 0.670059394 Break this problem into two subproblems by setting (y + -0.1428571429) equal to 0.670059394 and -0.670059394.

Subproblem 1

y + -0.1428571429 = 0.670059394 Simplifying y + -0.1428571429 = 0.670059394 Reorder the terms: -0.1428571429 + y = 0.670059394 Solving -0.1428571429 + y = 0.670059394 Solving for variable 'y'. Move all terms containing y to the left, all other terms to the right. Add '0.1428571429' to each side of the equation. -0.1428571429 + 0.1428571429 + y = 0.670059394 + 0.1428571429 Combine like terms: -0.1428571429 + 0.1428571429 = 0.0000000000 0.0000000000 + y = 0.670059394 + 0.1428571429 y = 0.670059394 + 0.1428571429 Combine like terms: 0.670059394 + 0.1428571429 = 0.8129165369 y = 0.8129165369 Simplifying y = 0.8129165369

Subproblem 2

y + -0.1428571429 = -0.670059394 Simplifying y + -0.1428571429 = -0.670059394 Reorder the terms: -0.1428571429 + y = -0.670059394 Solving -0.1428571429 + y = -0.670059394 Solving for variable 'y'. Move all terms containing y to the left, all other terms to the right. Add '0.1428571429' to each side of the equation. -0.1428571429 + 0.1428571429 + y = -0.670059394 + 0.1428571429 Combine like terms: -0.1428571429 + 0.1428571429 = 0.0000000000 0.0000000000 + y = -0.670059394 + 0.1428571429 y = -0.670059394 + 0.1428571429 Combine like terms: -0.670059394 + 0.1428571429 = -0.5272022511 y = -0.5272022511 Simplifying y = -0.5272022511

Solution

The solution to the problem is based on the solutions from the subproblems. y = {0.8129165369, -0.5272022511}

Solution

y = {0, 0.8129165369, -0.5272022511}

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