3y^3-7y^3+5y^2+6y+y^2=

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Solution for 3y^3-7y^3+5y^2+6y+y^2= equation:


Simplifying
3y3 + -7y3 + 5y2 + 6y + y2 = 0

Reorder the terms:
6y + 5y2 + y2 + 3y3 + -7y3 = 0

Combine like terms: 5y2 + y2 = 6y2
6y + 6y2 + 3y3 + -7y3 = 0

Combine like terms: 3y3 + -7y3 = -4y3
6y + 6y2 + -4y3 = 0

Solving
6y + 6y2 + -4y3 = 0

Solving for variable 'y'.

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

Ignore the factor 2.

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 + 3y + -2y2)' equal to zero and attempt to solve: Simplifying 3 + 3y + -2y2 = 0 Solving 3 + 3y + -2y2 = 0 Begin completing the square. Divide all terms by -2 the coefficient of the squared term: Divide each side by '-2'. -1.5 + -1.5y + y2 = 0 Move the constant term to the right: Add '1.5' to each side of the equation. -1.5 + -1.5y + 1.5 + y2 = 0 + 1.5 Reorder the terms: -1.5 + 1.5 + -1.5y + y2 = 0 + 1.5 Combine like terms: -1.5 + 1.5 = 0.0 0.0 + -1.5y + y2 = 0 + 1.5 -1.5y + y2 = 0 + 1.5 Combine like terms: 0 + 1.5 = 1.5 -1.5y + y2 = 1.5 The y term is -1.5y. Take half its coefficient (-0.75). Square it (0.5625) and add it to both sides. Add '0.5625' to each side of the equation. -1.5y + 0.5625 + y2 = 1.5 + 0.5625 Reorder the terms: 0.5625 + -1.5y + y2 = 1.5 + 0.5625 Combine like terms: 1.5 + 0.5625 = 2.0625 0.5625 + -1.5y + y2 = 2.0625 Factor a perfect square on the left side: (y + -0.75)(y + -0.75) = 2.0625 Calculate the square root of the right side: 1.436140662 Break this problem into two subproblems by setting (y + -0.75) equal to 1.436140662 and -1.436140662.

Subproblem 1

y + -0.75 = 1.436140662 Simplifying y + -0.75 = 1.436140662 Reorder the terms: -0.75 + y = 1.436140662 Solving -0.75 + y = 1.436140662 Solving for variable 'y'. Move all terms containing y to the left, all other terms to the right. Add '0.75' to each side of the equation. -0.75 + 0.75 + y = 1.436140662 + 0.75 Combine like terms: -0.75 + 0.75 = 0.00 0.00 + y = 1.436140662 + 0.75 y = 1.436140662 + 0.75 Combine like terms: 1.436140662 + 0.75 = 2.186140662 y = 2.186140662 Simplifying y = 2.186140662

Subproblem 2

y + -0.75 = -1.436140662 Simplifying y + -0.75 = -1.436140662 Reorder the terms: -0.75 + y = -1.436140662 Solving -0.75 + y = -1.436140662 Solving for variable 'y'. Move all terms containing y to the left, all other terms to the right. Add '0.75' to each side of the equation. -0.75 + 0.75 + y = -1.436140662 + 0.75 Combine like terms: -0.75 + 0.75 = 0.00 0.00 + y = -1.436140662 + 0.75 y = -1.436140662 + 0.75 Combine like terms: -1.436140662 + 0.75 = -0.686140662 y = -0.686140662 Simplifying y = -0.686140662

Solution

The solution to the problem is based on the solutions from the subproblems. y = {2.186140662, -0.686140662}

Solution

y = {0, 2.186140662, -0.686140662}

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