7.61x^2+2.79x=5.33

Simple and best practice solution for 7.61x^2+2.79x=5.33 equation. Check how easy it is, and learn it for the future. Our solution is simple, and easy to understand, so don`t hesitate to use it as a solution of your homework.

If it's not what You are looking for type in the equation solver your own equation and let us solve it.

Solution for 7.61x^2+2.79x=5.33 equation:


Simplifying
7.61x2 + 2.79x = 5.33

Reorder the terms:
2.79x + 7.61x2 = 5.33

Solving
2.79x + 7.61x2 = 5.33

Solving for variable 'x'.

Reorder the terms:
-5.33 + 2.79x + 7.61x2 = 5.33 + -5.33

Combine like terms: 5.33 + -5.33 = 0.00
-5.33 + 2.79x + 7.61x2 = 0.00

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

Divide each side by '7.61'.
-0.7003942181 + 0.3666228647x + x2 = 0

Move the constant term to the right:

Add '0.7003942181' to each side of the equation.
-0.7003942181 + 0.3666228647x + 0.7003942181 + x2 = 0 + 0.7003942181

Reorder the terms:
-0.7003942181 + 0.7003942181 + 0.3666228647x + x2 = 0 + 0.7003942181

Combine like terms: -0.7003942181 + 0.7003942181 = 0.0000000000
0.0000000000 + 0.3666228647x + x2 = 0 + 0.7003942181
0.3666228647x + x2 = 0 + 0.7003942181

Combine like terms: 0 + 0.7003942181 = 0.7003942181
0.3666228647x + x2 = 0.7003942181

The x term is 0.3666228647x.  Take half its coefficient (0.1833114324).
Square it (0.03360308125) and add it to both sides.

Add '0.03360308125' to each side of the equation.
0.3666228647x + 0.03360308125 + x2 = 0.7003942181 + 0.03360308125

Reorder the terms:
0.03360308125 + 0.3666228647x + x2 = 0.7003942181 + 0.03360308125

Combine like terms: 0.7003942181 + 0.03360308125 = 0.73399729935
0.03360308125 + 0.3666228647x + x2 = 0.73399729935

Factor a perfect square on the left side:
(x + 0.1833114324)(x + 0.1833114324) = 0.73399729935

Calculate the square root of the right side: 0.856736423

Break this problem into two subproblems by setting 
(x + 0.1833114324) equal to 0.856736423 and -0.856736423.

Subproblem 1

x + 0.1833114324 = 0.856736423 Simplifying x + 0.1833114324 = 0.856736423 Reorder the terms: 0.1833114324 + x = 0.856736423 Solving 0.1833114324 + x = 0.856736423 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.1833114324' to each side of the equation. 0.1833114324 + -0.1833114324 + x = 0.856736423 + -0.1833114324 Combine like terms: 0.1833114324 + -0.1833114324 = 0.0000000000 0.0000000000 + x = 0.856736423 + -0.1833114324 x = 0.856736423 + -0.1833114324 Combine like terms: 0.856736423 + -0.1833114324 = 0.6734249906 x = 0.6734249906 Simplifying x = 0.6734249906

Subproblem 2

x + 0.1833114324 = -0.856736423 Simplifying x + 0.1833114324 = -0.856736423 Reorder the terms: 0.1833114324 + x = -0.856736423 Solving 0.1833114324 + x = -0.856736423 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.1833114324' to each side of the equation. 0.1833114324 + -0.1833114324 + x = -0.856736423 + -0.1833114324 Combine like terms: 0.1833114324 + -0.1833114324 = 0.0000000000 0.0000000000 + x = -0.856736423 + -0.1833114324 x = -0.856736423 + -0.1833114324 Combine like terms: -0.856736423 + -0.1833114324 = -1.0400478554 x = -1.0400478554 Simplifying x = -1.0400478554

Solution

The solution to the problem is based on the solutions from the subproblems. x = {0.6734249906, -1.0400478554}

See similar equations:

| 1/9(36) | | 9y-3=-3(y+2) | | 4x+20=-5(x+5) | | 2[7-5(1-h)]+9n=-18+4 | | 3x-6x+4x-7+5x= | | X-5/2=5/3 | | X^8/x4 | | 6.8(x-2)=-0.2+28.4 | | -2x+9=4 | | 2x-26=-34 | | -11x-26=42-9x | | 4x+10+35-x=90 | | -x+4=6+4+3x-7x | | -2x+9=9 | | (5x-10)+(10x-5)=180 | | 33+5x+13=90 | | x=-4x-9 | | -2(1)+9=9 | | 7t^2+8=15t | | 3t+17=5 | | (5x+10)+(10x-5)=180 | | 3-5x+2x-10=90 | | 5x-3+18=90 | | s-26=-21 | | -4(a+1)=-16 | | 3=r-2/9 | | h^2+18h-72=0 | | 6(3+3x)-3=123 | | 16-4x=.16 | | 8(x+3)=2+9x | | 1/3x3.14x75x225 | | 8m-4m-6-3+5m=16-1 |

Equations solver categories