-2x^2+100x-25=0

Simple and best practice solution for -2x^2+100x-25=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 -2x^2+100x-25=0 equation:


Simplifying
-2x2 + 100x + -25 = 0

Reorder the terms:
-25 + 100x + -2x2 = 0

Solving
-25 + 100x + -2x2 = 0

Solving for variable 'x'.

Begin completing the square.  Divide all terms by
-2 the coefficient of the squared term: 

Divide each side by '-2'.
12.5 + -50x + x2 = 0

Move the constant term to the right:

Add '-12.5' to each side of the equation.
12.5 + -50x + -12.5 + x2 = 0 + -12.5

Reorder the terms:
12.5 + -12.5 + -50x + x2 = 0 + -12.5

Combine like terms: 12.5 + -12.5 = 0.0
0.0 + -50x + x2 = 0 + -12.5
-50x + x2 = 0 + -12.5

Combine like terms: 0 + -12.5 = -12.5
-50x + x2 = -12.5

The x term is -50x.  Take half its coefficient (-25).
Square it (625) and add it to both sides.

Add '625' to each side of the equation.
-50x + 625 + x2 = -12.5 + 625

Reorder the terms:
625 + -50x + x2 = -12.5 + 625

Combine like terms: -12.5 + 625 = 612.5
625 + -50x + x2 = 612.5

Factor a perfect square on the left side:
(x + -25)(x + -25) = 612.5

Calculate the square root of the right side: 24.748737342

Break this problem into two subproblems by setting 
(x + -25) equal to 24.748737342 and -24.748737342.

Subproblem 1

x + -25 = 24.748737342 Simplifying x + -25 = 24.748737342 Reorder the terms: -25 + x = 24.748737342 Solving -25 + x = 24.748737342 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '25' to each side of the equation. -25 + 25 + x = 24.748737342 + 25 Combine like terms: -25 + 25 = 0 0 + x = 24.748737342 + 25 x = 24.748737342 + 25 Combine like terms: 24.748737342 + 25 = 49.748737342 x = 49.748737342 Simplifying x = 49.748737342

Subproblem 2

x + -25 = -24.748737342 Simplifying x + -25 = -24.748737342 Reorder the terms: -25 + x = -24.748737342 Solving -25 + x = -24.748737342 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '25' to each side of the equation. -25 + 25 + x = -24.748737342 + 25 Combine like terms: -25 + 25 = 0 0 + x = -24.748737342 + 25 x = -24.748737342 + 25 Combine like terms: -24.748737342 + 25 = 0.251262658 x = 0.251262658 Simplifying x = 0.251262658

Solution

The solution to the problem is based on the solutions from the subproblems. x = {49.748737342, 0.251262658}

See similar equations:

| 8/2=6x+3(-5x) | | 20x-10x-2.25=0 | | 17-1/3x=8 | | X^2+2x-300=0 | | -7-2(-8x+1)=3 | | 0=-2x^2-8x | | 1.5x-4.5y=21 | | 4a+-7=-6a+12 | | x/3+13=-4 | | 3/2y=4/5x | | 1.2x+3.7=2.2x+-4.5 | | (56x^4y^6)/8x^4 | | 6x-2/5+3x-1/5-1=0 | | abs(x-4)-3abs(2x-5)=3 | | -7(-7v-1)-9(1+3v)= | | X^2+2000x-3000000=0 | | 2x+6=11x-(8/9) | | -7+-7p=3p+23 | | H=-5t^2+30+35 | | 1/9x^-2y^1 | | -7+7p=3p+23 | | m+4m= | | y=-3x^2+4 | | y=x^2-18x+162 | | x-50=450 | | 12d=8+8d | | 9+-2-2= | | 2y(y+3)=0 | | 13u-10-10u+5= | | 1/2(t+9)=16 | | 4+y/4=8 | | 27x^2+15x-12=0 |

Equations solver categories