276=17x^2-51.1x+305.4

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Solution for 276=17x^2-51.1x+305.4 equation:


Simplifying
276 = 17x2 + -51.1x + 305.4

Reorder the terms:
276 = 305.4 + -51.1x + 17x2

Solving
276 = 305.4 + -51.1x + 17x2

Solving for variable 'x'.

Combine like terms: 276 + -305.4 = -29.4
-29.4 + 51.1x + -17x2 = 305.4 + -51.1x + 17x2 + -305.4 + 51.1x + -17x2

Reorder the terms:
-29.4 + 51.1x + -17x2 = 305.4 + -305.4 + -51.1x + 51.1x + 17x2 + -17x2

Combine like terms: 305.4 + -305.4 = 0.0
-29.4 + 51.1x + -17x2 = 0.0 + -51.1x + 51.1x + 17x2 + -17x2
-29.4 + 51.1x + -17x2 = -51.1x + 51.1x + 17x2 + -17x2

Combine like terms: -51.1x + 51.1x = 0.0
-29.4 + 51.1x + -17x2 = 0.0 + 17x2 + -17x2
-29.4 + 51.1x + -17x2 = 17x2 + -17x2

Combine like terms: 17x2 + -17x2 = 0
-29.4 + 51.1x + -17x2 = 0

Begin completing the square.  Divide all terms by
-17 the coefficient of the squared term: 

Divide each side by '-17'.
1.729411765 + -3.005882353x + x2 = 0

Move the constant term to the right:

Add '-1.729411765' to each side of the equation.
1.729411765 + -3.005882353x + -1.729411765 + x2 = 0 + -1.729411765

Reorder the terms:
1.729411765 + -1.729411765 + -3.005882353x + x2 = 0 + -1.729411765

Combine like terms: 1.729411765 + -1.729411765 = 0.000000000
0.000000000 + -3.005882353x + x2 = 0 + -1.729411765
-3.005882353x + x2 = 0 + -1.729411765

Combine like terms: 0 + -1.729411765 = -1.729411765
-3.005882353x + x2 = -1.729411765

The x term is -3.005882353x.  Take half its coefficient (-1.502941177).
Square it (2.258832182) and add it to both sides.

Add '2.258832182' to each side of the equation.
-3.005882353x + 2.258832182 + x2 = -1.729411765 + 2.258832182

Reorder the terms:
2.258832182 + -3.005882353x + x2 = -1.729411765 + 2.258832182

Combine like terms: -1.729411765 + 2.258832182 = 0.529420417
2.258832182 + -3.005882353x + x2 = 0.529420417

Factor a perfect square on the left side:
(x + -1.502941177)(x + -1.502941177) = 0.529420417

Calculate the square root of the right side: 0.727612821

Break this problem into two subproblems by setting 
(x + -1.502941177) equal to 0.727612821 and -0.727612821.

Subproblem 1

x + -1.502941177 = 0.727612821 Simplifying x + -1.502941177 = 0.727612821 Reorder the terms: -1.502941177 + x = 0.727612821 Solving -1.502941177 + x = 0.727612821 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '1.502941177' to each side of the equation. -1.502941177 + 1.502941177 + x = 0.727612821 + 1.502941177 Combine like terms: -1.502941177 + 1.502941177 = 0.000000000 0.000000000 + x = 0.727612821 + 1.502941177 x = 0.727612821 + 1.502941177 Combine like terms: 0.727612821 + 1.502941177 = 2.230553998 x = 2.230553998 Simplifying x = 2.230553998

Subproblem 2

x + -1.502941177 = -0.727612821 Simplifying x + -1.502941177 = -0.727612821 Reorder the terms: -1.502941177 + x = -0.727612821 Solving -1.502941177 + x = -0.727612821 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '1.502941177' to each side of the equation. -1.502941177 + 1.502941177 + x = -0.727612821 + 1.502941177 Combine like terms: -1.502941177 + 1.502941177 = 0.000000000 0.000000000 + x = -0.727612821 + 1.502941177 x = -0.727612821 + 1.502941177 Combine like terms: -0.727612821 + 1.502941177 = 0.775328356 x = 0.775328356 Simplifying x = 0.775328356

Solution

The solution to the problem is based on the solutions from the subproblems. x = {2.230553998, 0.775328356}

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