x^2+2x^2+10x+25=625

Simple and best practice solution for x^2+2x^2+10x+25=625 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 x^2+2x^2+10x+25=625 equation:


Simplifying
x2 + 2x2 + 10x + 25 = 625

Reorder the terms:
25 + 10x + x2 + 2x2 = 625

Combine like terms: x2 + 2x2 = 3x2
25 + 10x + 3x2 = 625

Solving
25 + 10x + 3x2 = 625

Solving for variable 'x'.

Reorder the terms:
25 + -625 + 10x + 3x2 = 625 + -625

Combine like terms: 25 + -625 = -600
-600 + 10x + 3x2 = 625 + -625

Combine like terms: 625 + -625 = 0
-600 + 10x + 3x2 = 0

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

Divide each side by '3'.
-200 + 3.333333333x + x2 = 0

Move the constant term to the right:

Add '200' to each side of the equation.
-200 + 3.333333333x + 200 + x2 = 0 + 200

Reorder the terms:
-200 + 200 + 3.333333333x + x2 = 0 + 200

Combine like terms: -200 + 200 = 0
0 + 3.333333333x + x2 = 0 + 200
3.333333333x + x2 = 0 + 200

Combine like terms: 0 + 200 = 200
3.333333333x + x2 = 200

The x term is 3.333333333x.  Take half its coefficient (1.666666667).
Square it (2.777777779) and add it to both sides.

Add '2.777777779' to each side of the equation.
3.333333333x + 2.777777779 + x2 = 200 + 2.777777779

Reorder the terms:
2.777777779 + 3.333333333x + x2 = 200 + 2.777777779

Combine like terms: 200 + 2.777777779 = 202.777777779
2.777777779 + 3.333333333x + x2 = 202.777777779

Factor a perfect square on the left side:
(x + 1.666666667)(x + 1.666666667) = 202.777777779

Calculate the square root of the right side: 14.240006242

Break this problem into two subproblems by setting 
(x + 1.666666667) equal to 14.240006242 and -14.240006242.

Subproblem 1

x + 1.666666667 = 14.240006242 Simplifying x + 1.666666667 = 14.240006242 Reorder the terms: 1.666666667 + x = 14.240006242 Solving 1.666666667 + x = 14.240006242 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-1.666666667' to each side of the equation. 1.666666667 + -1.666666667 + x = 14.240006242 + -1.666666667 Combine like terms: 1.666666667 + -1.666666667 = 0.000000000 0.000000000 + x = 14.240006242 + -1.666666667 x = 14.240006242 + -1.666666667 Combine like terms: 14.240006242 + -1.666666667 = 12.573339575 x = 12.573339575 Simplifying x = 12.573339575

Subproblem 2

x + 1.666666667 = -14.240006242 Simplifying x + 1.666666667 = -14.240006242 Reorder the terms: 1.666666667 + x = -14.240006242 Solving 1.666666667 + x = -14.240006242 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-1.666666667' to each side of the equation. 1.666666667 + -1.666666667 + x = -14.240006242 + -1.666666667 Combine like terms: 1.666666667 + -1.666666667 = 0.000000000 0.000000000 + x = -14.240006242 + -1.666666667 x = -14.240006242 + -1.666666667 Combine like terms: -14.240006242 + -1.666666667 = -15.906672909 x = -15.906672909 Simplifying x = -15.906672909

Solution

The solution to the problem is based on the solutions from the subproblems. x = {12.573339575, -15.906672909}

See similar equations:

| 4x-4-1=4x-4+7 | | 2y^2=54 | | 7a-6g+12=3a-32 | | 4q-4.9-2.6q=0.2q-4.9 | | -6x+3=-8x-21 | | 4x-4=4x-4+7 | | 6xb+y=7y-x | | 6.4x-4.1(x-1)=6.9 | | 5(x+4)+3=5x+5 | | tan^2(2X)-3=0 | | 12x-16=10x-2 | | X^2=-6-5x | | 4x-3-1=4x-3+7 | | 1/3x-5=4 | | 68=5u+13 | | 1/3x-5=4 | | 3(x+2)+4x-5=7(x-1)-6 | | x-40=78 | | 1/4(2y+3)=3(1/3-y) | | 12/3+4-3+3x8 | | 27.4(x)=.2-2x | | 2x-12+12= | | 1/5(5x-3)=2/3(x+1/2) | | 4m-3=10m-6m+12 | | 3x-1=-5/11 | | 6x+6y=2x+5y | | 2x+5=-6x-59 | | 2(x-12)=-18 | | 2x+5=6x-59 | | 3x+8x-3x= | | 7x-2=6x+6 | | .90x+0.05(14-x)=0.10(-61) |

Equations solver categories