4a(1-a)=-36

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Solution for 4a(1-a)=-36 equation:


Simplifying
4a(1 + -1a) = -36
(1 * 4a + -1a * 4a) = -36
(4a + -4a2) = -36

Solving
4a + -4a2 = -36

Solving for variable 'a'.

Reorder the terms:
36 + 4a + -4a2 = -36 + 36

Combine like terms: -36 + 36 = 0
36 + 4a + -4a2 = 0

Factor out the Greatest Common Factor (GCF), '4'.
4(9 + a + -1a2) = 0

Ignore the factor 4.

Subproblem 1

Set the factor '(9 + a + -1a2)' equal to zero and attempt to solve: Simplifying 9 + a + -1a2 = 0 Solving 9 + a + -1a2 = 0 Begin completing the square. Divide all terms by -1 the coefficient of the squared term: Divide each side by '-1'. -9 + -1a + a2 = 0 Move the constant term to the right: Add '9' to each side of the equation. -9 + -1a + 9 + a2 = 0 + 9 Reorder the terms: -9 + 9 + -1a + a2 = 0 + 9 Combine like terms: -9 + 9 = 0 0 + -1a + a2 = 0 + 9 -1a + a2 = 0 + 9 Combine like terms: 0 + 9 = 9 -1a + a2 = 9 The a term is a. Take half its coefficient (0.5). Square it (0.25) and add it to both sides. Add '0.25' to each side of the equation. -1a + 0.25 + a2 = 9 + 0.25 Reorder the terms: 0.25 + -1a + a2 = 9 + 0.25 Combine like terms: 9 + 0.25 = 9.25 0.25 + -1a + a2 = 9.25 Factor a perfect square on the left side: (a + 0.5)(a + 0.5) = 9.25 Calculate the square root of the right side: 3.041381265 Break this problem into two subproblems by setting (a + 0.5) equal to 3.041381265 and -3.041381265.

Subproblem 1

a + 0.5 = 3.041381265 Simplifying a + 0.5 = 3.041381265 Reorder the terms: 0.5 + a = 3.041381265 Solving 0.5 + a = 3.041381265 Solving for variable 'a'. Move all terms containing a to the left, all other terms to the right. Add '-0.5' to each side of the equation. 0.5 + -0.5 + a = 3.041381265 + -0.5 Combine like terms: 0.5 + -0.5 = 0.0 0.0 + a = 3.041381265 + -0.5 a = 3.041381265 + -0.5 Combine like terms: 3.041381265 + -0.5 = 2.541381265 a = 2.541381265 Simplifying a = 2.541381265

Subproblem 2

a + 0.5 = -3.041381265 Simplifying a + 0.5 = -3.041381265 Reorder the terms: 0.5 + a = -3.041381265 Solving 0.5 + a = -3.041381265 Solving for variable 'a'. Move all terms containing a to the left, all other terms to the right. Add '-0.5' to each side of the equation. 0.5 + -0.5 + a = -3.041381265 + -0.5 Combine like terms: 0.5 + -0.5 = 0.0 0.0 + a = -3.041381265 + -0.5 a = -3.041381265 + -0.5 Combine like terms: -3.041381265 + -0.5 = -3.541381265 a = -3.541381265 Simplifying a = -3.541381265

Solution

The solution to the problem is based on the solutions from the subproblems. a = {2.541381265, -3.541381265}

Solution

a = {2.541381265, -3.541381265}

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