25x^2-20x=46

Simple and best practice solution for 25x^2-20x=46 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 25x^2-20x=46 equation:


Simplifying
25x2 + -20x = 46

Reorder the terms:
-20x + 25x2 = 46

Solving
-20x + 25x2 = 46

Solving for variable 'x'.

Reorder the terms:
-46 + -20x + 25x2 = 46 + -46

Combine like terms: 46 + -46 = 0
-46 + -20x + 25x2 = 0

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

Divide each side by '25'.
-1.84 + -0.8x + x2 = 0

Move the constant term to the right:

Add '1.84' to each side of the equation.
-1.84 + -0.8x + 1.84 + x2 = 0 + 1.84

Reorder the terms:
-1.84 + 1.84 + -0.8x + x2 = 0 + 1.84

Combine like terms: -1.84 + 1.84 = 0.00
0.00 + -0.8x + x2 = 0 + 1.84
-0.8x + x2 = 0 + 1.84

Combine like terms: 0 + 1.84 = 1.84
-0.8x + x2 = 1.84

The x term is -0.8x.  Take half its coefficient (-0.4).
Square it (0.16) and add it to both sides.

Add '0.16' to each side of the equation.
-0.8x + 0.16 + x2 = 1.84 + 0.16

Reorder the terms:
0.16 + -0.8x + x2 = 1.84 + 0.16

Combine like terms: 1.84 + 0.16 = 2
0.16 + -0.8x + x2 = 2

Factor a perfect square on the left side:
(x + -0.4)(x + -0.4) = 2

Calculate the square root of the right side: 1.414213562

Break this problem into two subproblems by setting 
(x + -0.4) equal to 1.414213562 and -1.414213562.

Subproblem 1

x + -0.4 = 1.414213562 Simplifying x + -0.4 = 1.414213562 Reorder the terms: -0.4 + x = 1.414213562 Solving -0.4 + x = 1.414213562 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '0.4' to each side of the equation. -0.4 + 0.4 + x = 1.414213562 + 0.4 Combine like terms: -0.4 + 0.4 = 0.0 0.0 + x = 1.414213562 + 0.4 x = 1.414213562 + 0.4 Combine like terms: 1.414213562 + 0.4 = 1.814213562 x = 1.814213562 Simplifying x = 1.814213562

Subproblem 2

x + -0.4 = -1.414213562 Simplifying x + -0.4 = -1.414213562 Reorder the terms: -0.4 + x = -1.414213562 Solving -0.4 + x = -1.414213562 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '0.4' to each side of the equation. -0.4 + 0.4 + x = -1.414213562 + 0.4 Combine like terms: -0.4 + 0.4 = 0.0 0.0 + x = -1.414213562 + 0.4 x = -1.414213562 + 0.4 Combine like terms: -1.414213562 + 0.4 = -1.014213562 x = -1.014213562 Simplifying x = -1.014213562

Solution

The solution to the problem is based on the solutions from the subproblems. x = {1.814213562, -1.014213562}

See similar equations:

| 3x+81=8x-14 | | 5(-7A-10)=3A-10 | | 2x+1-3x+5=3(x+1) | | 9.3-f/6.2=0.5 | | 4.5(x-2)+1.5=(3x-4)-1 | | 9.3x-6.2=12.4 | | 6.8=ln(x) | | 7[2x-5]+4[6-x]=19 | | 3x+-4=16 | | 3x+5y-2x+1y= | | 3y^2-16y+32=0 | | X^2-34x+128=0 | | x[(x+1)(x+2)(x+3)]=24 | | 1250=1000+10*n | | X^2+34x+128=0 | | 4r^2+10r-1=0 | | 3(x+4)-2=2(2x-4)+x+13 | | 2x+7=-47-7z | | (2x+3y)dx(3x+2y)dy=0 | | dx(t)=24cos(8t) | | -3x+33=6 | | x^3-3x+2= | | 2x^-4/3y^3 | | 9t+12= | | cos(8t)=0 | | 3a*1a=15200 | | 3(x-4)+6=5(x-1)+4 | | 3a*1x=15200 | | 3a+1a=15200 | | 3a+1a=x | | 24cos(8t)=0 | | 2*4=7 |

Equations solver categories