7.63x^2+2.79x=5.32

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Solution for 7.63x^2+2.79x=5.32 equation:


Simplifying
7.63x2 + 2.79x = 5.32

Reorder the terms:
2.79x + 7.63x2 = 5.32

Solving
2.79x + 7.63x2 = 5.32

Solving for variable 'x'.

Reorder the terms:
-5.32 + 2.79x + 7.63x2 = 5.32 + -5.32

Combine like terms: 5.32 + -5.32 = 0.00
-5.32 + 2.79x + 7.63x2 = 0.00

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

Divide each side by '7.63'.
-0.6972477064 + 0.3656618611x + x2 = 0

Move the constant term to the right:

Add '0.6972477064' to each side of the equation.
-0.6972477064 + 0.3656618611x + 0.6972477064 + x2 = 0 + 0.6972477064

Reorder the terms:
-0.6972477064 + 0.6972477064 + 0.3656618611x + x2 = 0 + 0.6972477064

Combine like terms: -0.6972477064 + 0.6972477064 = 0.0000000000
0.0000000000 + 0.3656618611x + x2 = 0 + 0.6972477064
0.3656618611x + x2 = 0 + 0.6972477064

Combine like terms: 0 + 0.6972477064 = 0.6972477064
0.3656618611x + x2 = 0.6972477064

The x term is 0.3656618611x.  Take half its coefficient (0.1828309306).
Square it (0.03342714918) and add it to both sides.

Add '0.03342714918' to each side of the equation.
0.3656618611x + 0.03342714918 + x2 = 0.6972477064 + 0.03342714918

Reorder the terms:
0.03342714918 + 0.3656618611x + x2 = 0.6972477064 + 0.03342714918

Combine like terms: 0.6972477064 + 0.03342714918 = 0.73067485558
0.03342714918 + 0.3656618611x + x2 = 0.73067485558

Factor a perfect square on the left side:
(x + 0.1828309306)(x + 0.1828309306) = 0.73067485558

Calculate the square root of the right side: 0.854795213

Break this problem into two subproblems by setting 
(x + 0.1828309306) equal to 0.854795213 and -0.854795213.

Subproblem 1

x + 0.1828309306 = 0.854795213 Simplifying x + 0.1828309306 = 0.854795213 Reorder the terms: 0.1828309306 + x = 0.854795213 Solving 0.1828309306 + x = 0.854795213 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.1828309306' to each side of the equation. 0.1828309306 + -0.1828309306 + x = 0.854795213 + -0.1828309306 Combine like terms: 0.1828309306 + -0.1828309306 = 0.0000000000 0.0000000000 + x = 0.854795213 + -0.1828309306 x = 0.854795213 + -0.1828309306 Combine like terms: 0.854795213 + -0.1828309306 = 0.6719642824 x = 0.6719642824 Simplifying x = 0.6719642824

Subproblem 2

x + 0.1828309306 = -0.854795213 Simplifying x + 0.1828309306 = -0.854795213 Reorder the terms: 0.1828309306 + x = -0.854795213 Solving 0.1828309306 + x = -0.854795213 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.1828309306' to each side of the equation. 0.1828309306 + -0.1828309306 + x = -0.854795213 + -0.1828309306 Combine like terms: 0.1828309306 + -0.1828309306 = 0.0000000000 0.0000000000 + x = -0.854795213 + -0.1828309306 x = -0.854795213 + -0.1828309306 Combine like terms: -0.854795213 + -0.1828309306 = -1.0376261436 x = -1.0376261436 Simplifying x = -1.0376261436

Solution

The solution to the problem is based on the solutions from the subproblems. x = {0.6719642824, -1.0376261436}

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