-4.9x^2+9x+600=0

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Solution for -4.9x^2+9x+600=0 equation:


Simplifying
-4.9x2 + 9x + 600 = 0

Reorder the terms:
600 + 9x + -4.9x2 = 0

Solving
600 + 9x + -4.9x2 = 0

Solving for variable 'x'.

Begin completing the square.  Divide all terms by
-4.9 the coefficient of the squared term: 

Divide each side by '-4.9'.
-122.4489796 + -1.836734694x + x2 = 0

Move the constant term to the right:

Add '122.4489796' to each side of the equation.
-122.4489796 + -1.836734694x + 122.4489796 + x2 = 0 + 122.4489796

Reorder the terms:
-122.4489796 + 122.4489796 + -1.836734694x + x2 = 0 + 122.4489796

Combine like terms: -122.4489796 + 122.4489796 = 0.0000000
0.0000000 + -1.836734694x + x2 = 0 + 122.4489796
-1.836734694x + x2 = 0 + 122.4489796

Combine like terms: 0 + 122.4489796 = 122.4489796
-1.836734694x + x2 = 122.4489796

The x term is -1.836734694x.  Take half its coefficient (-0.918367347).
Square it (0.8433985840) and add it to both sides.

Add '0.8433985840' to each side of the equation.
-1.836734694x + 0.8433985840 + x2 = 122.4489796 + 0.8433985840

Reorder the terms:
0.8433985840 + -1.836734694x + x2 = 122.4489796 + 0.8433985840

Combine like terms: 122.4489796 + 0.8433985840 = 123.292378184
0.8433985840 + -1.836734694x + x2 = 123.292378184

Factor a perfect square on the left side:
(x + -0.918367347)(x + -0.918367347) = 123.292378184

Calculate the square root of the right side: 11.103710109

Break this problem into two subproblems by setting 
(x + -0.918367347) equal to 11.103710109 and -11.103710109.

Subproblem 1

x + -0.918367347 = 11.103710109 Simplifying x + -0.918367347 = 11.103710109 Reorder the terms: -0.918367347 + x = 11.103710109 Solving -0.918367347 + x = 11.103710109 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '0.918367347' to each side of the equation. -0.918367347 + 0.918367347 + x = 11.103710109 + 0.918367347 Combine like terms: -0.918367347 + 0.918367347 = 0.000000000 0.000000000 + x = 11.103710109 + 0.918367347 x = 11.103710109 + 0.918367347 Combine like terms: 11.103710109 + 0.918367347 = 12.022077456 x = 12.022077456 Simplifying x = 12.022077456

Subproblem 2

x + -0.918367347 = -11.103710109 Simplifying x + -0.918367347 = -11.103710109 Reorder the terms: -0.918367347 + x = -11.103710109 Solving -0.918367347 + x = -11.103710109 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '0.918367347' to each side of the equation. -0.918367347 + 0.918367347 + x = -11.103710109 + 0.918367347 Combine like terms: -0.918367347 + 0.918367347 = 0.000000000 0.000000000 + x = -11.103710109 + 0.918367347 x = -11.103710109 + 0.918367347 Combine like terms: -11.103710109 + 0.918367347 = -10.185342762 x = -10.185342762 Simplifying x = -10.185342762

Solution

The solution to the problem is based on the solutions from the subproblems. x = {12.022077456, -10.185342762}

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