2x^2-197x+20=0

Simple and best practice solution for 2x^2-197x+20=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^2-197x+20=0 equation:


Simplifying
2x2 + -197x + 20 = 0

Reorder the terms:
20 + -197x + 2x2 = 0

Solving
20 + -197x + 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'.
10 + -98.5x + x2 = 0

Move the constant term to the right:

Add '-10' to each side of the equation.
10 + -98.5x + -10 + x2 = 0 + -10

Reorder the terms:
10 + -10 + -98.5x + x2 = 0 + -10

Combine like terms: 10 + -10 = 0
0 + -98.5x + x2 = 0 + -10
-98.5x + x2 = 0 + -10

Combine like terms: 0 + -10 = -10
-98.5x + x2 = -10

The x term is -98.5x.  Take half its coefficient (-49.25).
Square it (2425.5625) and add it to both sides.

Add '2425.5625' to each side of the equation.
-98.5x + 2425.5625 + x2 = -10 + 2425.5625

Reorder the terms:
2425.5625 + -98.5x + x2 = -10 + 2425.5625

Combine like terms: -10 + 2425.5625 = 2415.5625
2425.5625 + -98.5x + x2 = 2415.5625

Factor a perfect square on the left side:
(x + -49.25)(x + -49.25) = 2415.5625

Calculate the square root of the right side: 49.148372303

Break this problem into two subproblems by setting 
(x + -49.25) equal to 49.148372303 and -49.148372303.

Subproblem 1

x + -49.25 = 49.148372303 Simplifying x + -49.25 = 49.148372303 Reorder the terms: -49.25 + x = 49.148372303 Solving -49.25 + x = 49.148372303 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '49.25' to each side of the equation. -49.25 + 49.25 + x = 49.148372303 + 49.25 Combine like terms: -49.25 + 49.25 = 0.00 0.00 + x = 49.148372303 + 49.25 x = 49.148372303 + 49.25 Combine like terms: 49.148372303 + 49.25 = 98.398372303 x = 98.398372303 Simplifying x = 98.398372303

Subproblem 2

x + -49.25 = -49.148372303 Simplifying x + -49.25 = -49.148372303 Reorder the terms: -49.25 + x = -49.148372303 Solving -49.25 + x = -49.148372303 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '49.25' to each side of the equation. -49.25 + 49.25 + x = -49.148372303 + 49.25 Combine like terms: -49.25 + 49.25 = 0.00 0.00 + x = -49.148372303 + 49.25 x = -49.148372303 + 49.25 Combine like terms: -49.148372303 + 49.25 = 0.101627697 x = 0.101627697 Simplifying x = 0.101627697

Solution

The solution to the problem is based on the solutions from the subproblems. x = {98.398372303, 0.101627697}

See similar equations:

| x+8+1=12 | | x=61/4+71/2 | | 225+1024-B^2=768 | | C^2+-24C=255 | | C^2+-24C+225=0 | | x^3-100lnx=0 | | -8+24x= | | 10/y-1/4=1/6 | | 1+200= | | x+3x-8=2x | | -0.6y+y=0 | | R(x)=300x-(1/2)x^2 | | (x-7)(x-7)=(9-x)(9-x) | | (4+-2)= | | 10(s-9)=-134 | | 12x+2=4x+4 | | (x-2)+3=(x+1)(x-1)+x | | -46+5x=3x | | 55x+2=4x+6 | | 34x+2=4x+2 | | 34x+2=4x+12 | | 22x+2=4x+3 | | 22x+2=4x+20 | | 16x+2=4x+20 | | 8x+2=4x+12 | | (x+y)=(x-y) | | 6x+7-4x^2+4x-1=0 | | 9x+1=(x+1) | | 3(x+1)=5-3(x-2) | | X+25=yfindxy | | 8k+40=60 | | 4w+1-w^2+2w-1=0 |

Equations solver categories