3a^3(2a^2-7a-8)=

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Solution for 3a^3(2a^2-7a-8)= equation:


Simplifying
3a3(2a2 + -7a + -8) = 0

Reorder the terms:
3a3(-8 + -7a + 2a2) = 0
(-8 * 3a3 + -7a * 3a3 + 2a2 * 3a3) = 0
(-24a3 + -21a4 + 6a5) = 0

Solving
-24a3 + -21a4 + 6a5 = 0

Solving for variable 'a'.

Factor out the Greatest Common Factor (GCF), '3a3'.
3a3(-8 + -7a + 2a2) = 0

Ignore the factor 3.

Subproblem 1

Set the factor 'a3' equal to zero and attempt to solve: Simplifying a3 = 0 Solving a3 = 0 Move all terms containing a to the left, all other terms to the right. Simplifying a3 = 0 The solution to this equation could not be determined. This subproblem is being ignored because a solution could not be determined.

Subproblem 2

Set the factor '(-8 + -7a + 2a2)' equal to zero and attempt to solve: Simplifying -8 + -7a + 2a2 = 0 Solving -8 + -7a + 2a2 = 0 Begin completing the square. Divide all terms by 2 the coefficient of the squared term: Divide each side by '2'. -4 + -3.5a + a2 = 0 Move the constant term to the right: Add '4' to each side of the equation. -4 + -3.5a + 4 + a2 = 0 + 4 Reorder the terms: -4 + 4 + -3.5a + a2 = 0 + 4 Combine like terms: -4 + 4 = 0 0 + -3.5a + a2 = 0 + 4 -3.5a + a2 = 0 + 4 Combine like terms: 0 + 4 = 4 -3.5a + a2 = 4 The a term is -3.5a. Take half its coefficient (-1.75). Square it (3.0625) and add it to both sides. Add '3.0625' to each side of the equation. -3.5a + 3.0625 + a2 = 4 + 3.0625 Reorder the terms: 3.0625 + -3.5a + a2 = 4 + 3.0625 Combine like terms: 4 + 3.0625 = 7.0625 3.0625 + -3.5a + a2 = 7.0625 Factor a perfect square on the left side: (a + -1.75)(a + -1.75) = 7.0625 Calculate the square root of the right side: 2.657536453 Break this problem into two subproblems by setting (a + -1.75) equal to 2.657536453 and -2.657536453.

Subproblem 1

a + -1.75 = 2.657536453 Simplifying a + -1.75 = 2.657536453 Reorder the terms: -1.75 + a = 2.657536453 Solving -1.75 + a = 2.657536453 Solving for variable 'a'. Move all terms containing a to the left, all other terms to the right. Add '1.75' to each side of the equation. -1.75 + 1.75 + a = 2.657536453 + 1.75 Combine like terms: -1.75 + 1.75 = 0.00 0.00 + a = 2.657536453 + 1.75 a = 2.657536453 + 1.75 Combine like terms: 2.657536453 + 1.75 = 4.407536453 a = 4.407536453 Simplifying a = 4.407536453

Subproblem 2

a + -1.75 = -2.657536453 Simplifying a + -1.75 = -2.657536453 Reorder the terms: -1.75 + a = -2.657536453 Solving -1.75 + a = -2.657536453 Solving for variable 'a'. Move all terms containing a to the left, all other terms to the right. Add '1.75' to each side of the equation. -1.75 + 1.75 + a = -2.657536453 + 1.75 Combine like terms: -1.75 + 1.75 = 0.00 0.00 + a = -2.657536453 + 1.75 a = -2.657536453 + 1.75 Combine like terms: -2.657536453 + 1.75 = -0.907536453 a = -0.907536453 Simplifying a = -0.907536453

Solution

The solution to the problem is based on the solutions from the subproblems. a = {4.407536453, -0.907536453}

Solution

a = {4.407536453, -0.907536453}

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