7x^2-260x+1000=0

Simple and best practice solution for 7x^2-260x+1000=0 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 7x^2-260x+1000=0 equation:


Simplifying
7x2 + -260x + 1000 = 0

Reorder the terms:
1000 + -260x + 7x2 = 0

Solving
1000 + -260x + 7x2 = 0

Solving for variable 'x'.

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

Divide each side by '7'.
142.8571429 + -37.14285714x + x2 = 0

Move the constant term to the right:

Add '-142.8571429' to each side of the equation.
142.8571429 + -37.14285714x + -142.8571429 + x2 = 0 + -142.8571429

Reorder the terms:
142.8571429 + -142.8571429 + -37.14285714x + x2 = 0 + -142.8571429

Combine like terms: 142.8571429 + -142.8571429 = 0.0000000
0.0000000 + -37.14285714x + x2 = 0 + -142.8571429
-37.14285714x + x2 = 0 + -142.8571429

Combine like terms: 0 + -142.8571429 = -142.8571429
-37.14285714x + x2 = -142.8571429

The x term is -37.14285714x.  Take half its coefficient (-18.57142857).
Square it (344.8979591) and add it to both sides.

Add '344.8979591' to each side of the equation.
-37.14285714x + 344.8979591 + x2 = -142.8571429 + 344.8979591

Reorder the terms:
344.8979591 + -37.14285714x + x2 = -142.8571429 + 344.8979591

Combine like terms: -142.8571429 + 344.8979591 = 202.0408162
344.8979591 + -37.14285714x + x2 = 202.0408162

Factor a perfect square on the left side:
(x + -18.57142857)(x + -18.57142857) = 202.0408162

Calculate the square root of the right side: 14.21410624

Break this problem into two subproblems by setting 
(x + -18.57142857) equal to 14.21410624 and -14.21410624.

Subproblem 1

x + -18.57142857 = 14.21410624 Simplifying x + -18.57142857 = 14.21410624 Reorder the terms: -18.57142857 + x = 14.21410624 Solving -18.57142857 + x = 14.21410624 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '18.57142857' to each side of the equation. -18.57142857 + 18.57142857 + x = 14.21410624 + 18.57142857 Combine like terms: -18.57142857 + 18.57142857 = 0.00000000 0.00000000 + x = 14.21410624 + 18.57142857 x = 14.21410624 + 18.57142857 Combine like terms: 14.21410624 + 18.57142857 = 32.78553481 x = 32.78553481 Simplifying x = 32.78553481

Subproblem 2

x + -18.57142857 = -14.21410624 Simplifying x + -18.57142857 = -14.21410624 Reorder the terms: -18.57142857 + x = -14.21410624 Solving -18.57142857 + x = -14.21410624 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '18.57142857' to each side of the equation. -18.57142857 + 18.57142857 + x = -14.21410624 + 18.57142857 Combine like terms: -18.57142857 + 18.57142857 = 0.00000000 0.00000000 + x = -14.21410624 + 18.57142857 x = -14.21410624 + 18.57142857 Combine like terms: -14.21410624 + 18.57142857 = 4.35732233 x = 4.35732233 Simplifying x = 4.35732233

Solution

The solution to the problem is based on the solutions from the subproblems. x = {32.78553481, 4.35732233}

See similar equations:

| 2(y+4)-5y=-19 | | F-1(2)=5x+8 | | log(4x)=2 | | 8+4x-2x=0 | | 4x^2-13-3=0 | | 5(6)+4x= | | 2(4y+9)+3=3(4+3) | | 3y-9=-17-2y | | 3(6x+4)=102 | | 4y-6x+3=0 | | 3(y+1)-2=2y+1 | | (N-3)(n-3)=15-7n | | 2(4y+9)+3=9+3(4+3) | | 94-w=193 | | 4x^2+38x+70= | | 3x+7=x+4 | | 8x-6=10x+5 | | 8+4x-2=0 | | y=3x^2-30x | | 3(x+2.71)=4x-7 | | 10n^2-23n+12=0 | | 5y-9x=-7 | | 49t^2-5=31 | | 15p^2+23p+15=0 | | [6x+3]=15 | | 4x+10-5x=11 | | x^5+x^4-5x^3-x^2+8x-4=0 | | -7y-4x=16 | | 3x+2.7=6.9 | | -17x^2+17x=0 | | -2(x+5)+12=4 | | x^2-5x-1200=0 |

Equations solver categories