16x^2+77x=17+6x

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Solution for 16x^2+77x=17+6x equation:


Simplifying
16x2 + 77x = 17 + 6x

Reorder the terms:
77x + 16x2 = 17 + 6x

Solving
77x + 16x2 = 17 + 6x

Solving for variable 'x'.

Reorder the terms:
-17 + 77x + -6x + 16x2 = 17 + 6x + -17 + -6x

Combine like terms: 77x + -6x = 71x
-17 + 71x + 16x2 = 17 + 6x + -17 + -6x

Reorder the terms:
-17 + 71x + 16x2 = 17 + -17 + 6x + -6x

Combine like terms: 17 + -17 = 0
-17 + 71x + 16x2 = 0 + 6x + -6x
-17 + 71x + 16x2 = 6x + -6x

Combine like terms: 6x + -6x = 0
-17 + 71x + 16x2 = 0

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

Divide each side by '16'.
-1.0625 + 4.4375x + x2 = 0

Move the constant term to the right:

Add '1.0625' to each side of the equation.
-1.0625 + 4.4375x + 1.0625 + x2 = 0 + 1.0625

Reorder the terms:
-1.0625 + 1.0625 + 4.4375x + x2 = 0 + 1.0625

Combine like terms: -1.0625 + 1.0625 = 0.0000
0.0000 + 4.4375x + x2 = 0 + 1.0625
4.4375x + x2 = 0 + 1.0625

Combine like terms: 0 + 1.0625 = 1.0625
4.4375x + x2 = 1.0625

The x term is 4.4375x.  Take half its coefficient (2.21875).
Square it (4.922851563) and add it to both sides.

Add '4.922851563' to each side of the equation.
4.4375x + 4.922851563 + x2 = 1.0625 + 4.922851563

Reorder the terms:
4.922851563 + 4.4375x + x2 = 1.0625 + 4.922851563

Combine like terms: 1.0625 + 4.922851563 = 5.985351563
4.922851563 + 4.4375x + x2 = 5.985351563

Factor a perfect square on the left side:
(x + 2.21875)(x + 2.21875) = 5.985351563

Calculate the square root of the right side: 2.446497816

Break this problem into two subproblems by setting 
(x + 2.21875) equal to 2.446497816 and -2.446497816.

Subproblem 1

x + 2.21875 = 2.446497816 Simplifying x + 2.21875 = 2.446497816 Reorder the terms: 2.21875 + x = 2.446497816 Solving 2.21875 + x = 2.446497816 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-2.21875' to each side of the equation. 2.21875 + -2.21875 + x = 2.446497816 + -2.21875 Combine like terms: 2.21875 + -2.21875 = 0.00000 0.00000 + x = 2.446497816 + -2.21875 x = 2.446497816 + -2.21875 Combine like terms: 2.446497816 + -2.21875 = 0.227747816 x = 0.227747816 Simplifying x = 0.227747816

Subproblem 2

x + 2.21875 = -2.446497816 Simplifying x + 2.21875 = -2.446497816 Reorder the terms: 2.21875 + x = -2.446497816 Solving 2.21875 + x = -2.446497816 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-2.21875' to each side of the equation. 2.21875 + -2.21875 + x = -2.446497816 + -2.21875 Combine like terms: 2.21875 + -2.21875 = 0.00000 0.00000 + x = -2.446497816 + -2.21875 x = -2.446497816 + -2.21875 Combine like terms: -2.446497816 + -2.21875 = -4.665247816 x = -4.665247816 Simplifying x = -4.665247816

Solution

The solution to the problem is based on the solutions from the subproblems. x = {0.227747816, -4.665247816}

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