897.86=4x^2-100x^2+600x

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Solution for 897.86=4x^2-100x^2+600x equation:


Simplifying
897.86 = 4x2 + -100x2 + 600x

Reorder the terms:
897.86 = 600x + 4x2 + -100x2

Combine like terms: 4x2 + -100x2 = -96x2
897.86 = 600x + -96x2

Solving
897.86 = 600x + -96x2

Solving for variable 'x'.

Reorder the terms:
897.86 + -600x + 96x2 = 600x + -600x + -96x2 + 96x2

Combine like terms: 600x + -600x = 0
897.86 + -600x + 96x2 = 0 + -96x2 + 96x2
897.86 + -600x + 96x2 = -96x2 + 96x2

Combine like terms: -96x2 + 96x2 = 0
897.86 + -600x + 96x2 = 0

Begin completing the square.  Divide all terms by
96 the coefficient of the squared term: 

Divide each side by '96'.
9.352708333 + -6.25x + x2 = 0

Move the constant term to the right:

Add '-9.352708333' to each side of the equation.
9.352708333 + -6.25x + -9.352708333 + x2 = 0 + -9.352708333

Reorder the terms:
9.352708333 + -9.352708333 + -6.25x + x2 = 0 + -9.352708333

Combine like terms: 9.352708333 + -9.352708333 = 0.000000000
0.000000000 + -6.25x + x2 = 0 + -9.352708333
-6.25x + x2 = 0 + -9.352708333

Combine like terms: 0 + -9.352708333 = -9.352708333
-6.25x + x2 = -9.352708333

The x term is -6.25x.  Take half its coefficient (-3.125).
Square it (9.765625) and add it to both sides.

Add '9.765625' to each side of the equation.
-6.25x + 9.765625 + x2 = -9.352708333 + 9.765625

Reorder the terms:
9.765625 + -6.25x + x2 = -9.352708333 + 9.765625

Combine like terms: -9.352708333 + 9.765625 = 0.412916667
9.765625 + -6.25x + x2 = 0.412916667

Factor a perfect square on the left side:
(x + -3.125)(x + -3.125) = 0.412916667

Calculate the square root of the right side: 0.642585922

Break this problem into two subproblems by setting 
(x + -3.125) equal to 0.642585922 and -0.642585922.

Subproblem 1

x + -3.125 = 0.642585922 Simplifying x + -3.125 = 0.642585922 Reorder the terms: -3.125 + x = 0.642585922 Solving -3.125 + x = 0.642585922 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '3.125' to each side of the equation. -3.125 + 3.125 + x = 0.642585922 + 3.125 Combine like terms: -3.125 + 3.125 = 0.000 0.000 + x = 0.642585922 + 3.125 x = 0.642585922 + 3.125 Combine like terms: 0.642585922 + 3.125 = 3.767585922 x = 3.767585922 Simplifying x = 3.767585922

Subproblem 2

x + -3.125 = -0.642585922 Simplifying x + -3.125 = -0.642585922 Reorder the terms: -3.125 + x = -0.642585922 Solving -3.125 + x = -0.642585922 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '3.125' to each side of the equation. -3.125 + 3.125 + x = -0.642585922 + 3.125 Combine like terms: -3.125 + 3.125 = 0.000 0.000 + x = -0.642585922 + 3.125 x = -0.642585922 + 3.125 Combine like terms: -0.642585922 + 3.125 = 2.482414078 x = 2.482414078 Simplifying x = 2.482414078

Solution

The solution to the problem is based on the solutions from the subproblems. x = {3.767585922, 2.482414078}

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