-2x^2-3x+1=0

Simple and best practice solution for -2x^2-3x+1=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^2-3x+1=0 equation:


Simplifying
-2x2 + -3x + 1 = 0

Reorder the terms:
1 + -3x + -2x2 = 0

Solving
1 + -3x + -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'.
-0.5 + 1.5x + x2 = 0

Move the constant term to the right:

Add '0.5' to each side of the equation.
-0.5 + 1.5x + 0.5 + x2 = 0 + 0.5

Reorder the terms:
-0.5 + 0.5 + 1.5x + x2 = 0 + 0.5

Combine like terms: -0.5 + 0.5 = 0.0
0.0 + 1.5x + x2 = 0 + 0.5
1.5x + x2 = 0 + 0.5

Combine like terms: 0 + 0.5 = 0.5
1.5x + x2 = 0.5

The x term is 1.5x.  Take half its coefficient (0.75).
Square it (0.5625) and add it to both sides.

Add '0.5625' to each side of the equation.
1.5x + 0.5625 + x2 = 0.5 + 0.5625

Reorder the terms:
0.5625 + 1.5x + x2 = 0.5 + 0.5625

Combine like terms: 0.5 + 0.5625 = 1.0625
0.5625 + 1.5x + x2 = 1.0625

Factor a perfect square on the left side:
(x + 0.75)(x + 0.75) = 1.0625

Calculate the square root of the right side: 1.030776406

Break this problem into two subproblems by setting 
(x + 0.75) equal to 1.030776406 and -1.030776406.

Subproblem 1

x + 0.75 = 1.030776406 Simplifying x + 0.75 = 1.030776406 Reorder the terms: 0.75 + x = 1.030776406 Solving 0.75 + x = 1.030776406 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.75' to each side of the equation. 0.75 + -0.75 + x = 1.030776406 + -0.75 Combine like terms: 0.75 + -0.75 = 0.00 0.00 + x = 1.030776406 + -0.75 x = 1.030776406 + -0.75 Combine like terms: 1.030776406 + -0.75 = 0.280776406 x = 0.280776406 Simplifying x = 0.280776406

Subproblem 2

x + 0.75 = -1.030776406 Simplifying x + 0.75 = -1.030776406 Reorder the terms: 0.75 + x = -1.030776406 Solving 0.75 + x = -1.030776406 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.75' to each side of the equation. 0.75 + -0.75 + x = -1.030776406 + -0.75 Combine like terms: 0.75 + -0.75 = 0.00 0.00 + x = -1.030776406 + -0.75 x = -1.030776406 + -0.75 Combine like terms: -1.030776406 + -0.75 = -1.780776406 x = -1.780776406 Simplifying x = -1.780776406

Solution

The solution to the problem is based on the solutions from the subproblems. x = {0.280776406, -1.780776406}

See similar equations:

| 4x=20 | | 139-3x=33x+15 | | 3x-7=-4 | | a^2-4b+9=0 | | 0.50x+0.45(50)=23.5 | | 6(1-x)+2=8-5x | | 8-7x=208-42x | | 6n+2=4n-3 | | 7n+8=4n-3 | | 18x^4-13x^3= | | -45-8x=9x+23 | | 7n+8=6n+2 | | A=gr | | -11x^2-174x+221=0 | | 7x+4=-4+4x+14 | | 2n-9=1 | | 5x-9=3x-5 | | (x+7)(x-1)=(x+1)2 | | 5x+1=2x+19 | | -x^2-2x-6=0 | | 5+7(14-9m)= | | -3x-8y=20 | | 6x-3-2x-8=19 | | -8x+7y=13 | | x^2-9x-4.75=0 | | 3(2x-1)-2(x-4)=19 | | 1.5(3x+3)=4(3-3x)+9 | | 8-(2+6)=b-9 | | -5(2p+2)-14=2(5p+8) | | 7x+2=3x+12 | | 4(c-4)=5(c-7) | | 4x^3-24x^2+20x= |

Equations solver categories