-0.6x^2+5.1x+2=5

Simple and best practice solution for -0.6x^2+5.1x+2=5 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 -0.6x^2+5.1x+2=5 equation:


Simplifying
-0.6x2 + 5.1x + 2 = 5

Reorder the terms:
2 + 5.1x + -0.6x2 = 5

Solving
2 + 5.1x + -0.6x2 = 5

Solving for variable 'x'.

Reorder the terms:
2 + -5 + 5.1x + -0.6x2 = 5 + -5

Combine like terms: 2 + -5 = -3
-3 + 5.1x + -0.6x2 = 5 + -5

Combine like terms: 5 + -5 = 0
-3 + 5.1x + -0.6x2 = 0

Begin completing the square.  Divide all terms by
-0.6 the coefficient of the squared term: 

Divide each side by '-0.6'.
5 + -8.5x + x2 = 0

Move the constant term to the right:

Add '-5' to each side of the equation.
5 + -8.5x + -5 + x2 = 0 + -5

Reorder the terms:
5 + -5 + -8.5x + x2 = 0 + -5

Combine like terms: 5 + -5 = 0
0 + -8.5x + x2 = 0 + -5
-8.5x + x2 = 0 + -5

Combine like terms: 0 + -5 = -5
-8.5x + x2 = -5

The x term is -8.5x.  Take half its coefficient (-4.25).
Square it (18.0625) and add it to both sides.

Add '18.0625' to each side of the equation.
-8.5x + 18.0625 + x2 = -5 + 18.0625

Reorder the terms:
18.0625 + -8.5x + x2 = -5 + 18.0625

Combine like terms: -5 + 18.0625 = 13.0625
18.0625 + -8.5x + x2 = 13.0625

Factor a perfect square on the left side:
(x + -4.25)(x + -4.25) = 13.0625

Calculate the square root of the right side: 3.614208074

Break this problem into two subproblems by setting 
(x + -4.25) equal to 3.614208074 and -3.614208074.

Subproblem 1

x + -4.25 = 3.614208074 Simplifying x + -4.25 = 3.614208074 Reorder the terms: -4.25 + x = 3.614208074 Solving -4.25 + x = 3.614208074 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '4.25' to each side of the equation. -4.25 + 4.25 + x = 3.614208074 + 4.25 Combine like terms: -4.25 + 4.25 = 0.00 0.00 + x = 3.614208074 + 4.25 x = 3.614208074 + 4.25 Combine like terms: 3.614208074 + 4.25 = 7.864208074 x = 7.864208074 Simplifying x = 7.864208074

Subproblem 2

x + -4.25 = -3.614208074 Simplifying x + -4.25 = -3.614208074 Reorder the terms: -4.25 + x = -3.614208074 Solving -4.25 + x = -3.614208074 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '4.25' to each side of the equation. -4.25 + 4.25 + x = -3.614208074 + 4.25 Combine like terms: -4.25 + 4.25 = 0.00 0.00 + x = -3.614208074 + 4.25 x = -3.614208074 + 4.25 Combine like terms: -3.614208074 + 4.25 = 0.635791926 x = 0.635791926 Simplifying x = 0.635791926

Solution

The solution to the problem is based on the solutions from the subproblems. x = {7.864208074, 0.635791926}

See similar equations:

| 2x^2-196=0 | | 8x^2=9x | | 13m+3m-4m+10n= | | 4(3(x-6)-5(2-y)+6-7y)= | | x^2+10-200=0 | | 6(4x+3)=2(11x+9) | | (-2x)(7y)= | | 11d+3=5d+15 | | 2+9x=34+x | | 3(4-x)-24=21x-6(2+4x) | | 95-5x=8x+17 | | 7(x-5)=7.7 | | 2(3x-2y)-4(x+4y)= | | 4(a+6)=51.6 | | 10x+5=8x+17 | | 1.5=5c-5 | | 7e-8=50.1 | | 5y+1=2y+21 | | 2x+34=9x-2 | | 9p=51.3 | | 6(x-7)=-18 | | 2x-24=9x-22 | | 4(2x+3)=2+5(15-x) | | 7(a+5)=49 | | 53=7c-3 | | 6x+49=11x+14 | | 5e-1=14 | | (3xy+4x-7y)= | | 5(-5n+5)=100 | | 5x-3-4x-13=27 | | (x+3)(x-7)=-9 | | p=5g+5u |

Equations solver categories