2*x^2-5x+1=3

Simple and best practice solution for 2*x^2-5x+1=3 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 2*x^2-5x+1=3 equation:


Simplifying
2x2 + -5x + 1 = 3

Reorder the terms:
1 + -5x + 2x2 = 3

Solving
1 + -5x + 2x2 = 3

Solving for variable 'x'.

Reorder the terms:
1 + -3 + -5x + 2x2 = 3 + -3

Combine like terms: 1 + -3 = -2
-2 + -5x + 2x2 = 3 + -3

Combine like terms: 3 + -3 = 0
-2 + -5x + 2x2 = 0

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

Divide each side by '2'.
-1 + -2.5x + x2 = 0

Move the constant term to the right:

Add '1' to each side of the equation.
-1 + -2.5x + 1 + x2 = 0 + 1

Reorder the terms:
-1 + 1 + -2.5x + x2 = 0 + 1

Combine like terms: -1 + 1 = 0
0 + -2.5x + x2 = 0 + 1
-2.5x + x2 = 0 + 1

Combine like terms: 0 + 1 = 1
-2.5x + x2 = 1

The x term is -2.5x.  Take half its coefficient (-1.25).
Square it (1.5625) and add it to both sides.

Add '1.5625' to each side of the equation.
-2.5x + 1.5625 + x2 = 1 + 1.5625

Reorder the terms:
1.5625 + -2.5x + x2 = 1 + 1.5625

Combine like terms: 1 + 1.5625 = 2.5625
1.5625 + -2.5x + x2 = 2.5625

Factor a perfect square on the left side:
(x + -1.25)(x + -1.25) = 2.5625

Calculate the square root of the right side: 1.600781059

Break this problem into two subproblems by setting 
(x + -1.25) equal to 1.600781059 and -1.600781059.

Subproblem 1

x + -1.25 = 1.600781059 Simplifying x + -1.25 = 1.600781059 Reorder the terms: -1.25 + x = 1.600781059 Solving -1.25 + x = 1.600781059 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '1.25' to each side of the equation. -1.25 + 1.25 + x = 1.600781059 + 1.25 Combine like terms: -1.25 + 1.25 = 0.00 0.00 + x = 1.600781059 + 1.25 x = 1.600781059 + 1.25 Combine like terms: 1.600781059 + 1.25 = 2.850781059 x = 2.850781059 Simplifying x = 2.850781059

Subproblem 2

x + -1.25 = -1.600781059 Simplifying x + -1.25 = -1.600781059 Reorder the terms: -1.25 + x = -1.600781059 Solving -1.25 + x = -1.600781059 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '1.25' to each side of the equation. -1.25 + 1.25 + x = -1.600781059 + 1.25 Combine like terms: -1.25 + 1.25 = 0.00 0.00 + x = -1.600781059 + 1.25 x = -1.600781059 + 1.25 Combine like terms: -1.600781059 + 1.25 = -0.350781059 x = -0.350781059 Simplifying x = -0.350781059

Solution

The solution to the problem is based on the solutions from the subproblems. x = {2.850781059, -0.350781059}

See similar equations:

| Log(2)=(3x-5) | | 6x^2-5x-46=5x-10 | | 24ax/-12a | | s-2=18 | | 5x+y-9=0 | | 24x/12x^2 | | graphx=3y-6 | | 3n^2-4n-2M=0 | | 7y-35x=56 | | 3x-4y=-34 | | 3a^2=68+5a | | 55-44a=11 | | 7x-2(x-10)=4 | | -14=2x+9-7x | | 4x-7+2x=3+12x-19 | | 12x-3(x+7)=6 | | 5a^2+26a+64=0 | | x+2+x+12=13 | | 6logx+14=26 | | 9m+9=97 | | 4v=21 | | ln(x)-ln(y)=2*y-2*x | | ln(x)-ln(y)=2y-2x | | [4p-(7q+3s)][4+(7q+3s)]= | | 4x^2-11x+10=4x+1 | | X^4-4x^3-3x^2+14x+12=0 | | A=WN | | x^2-15+56.25= | | x^2-15+35.25= | | x^2-15+356.25= | | 8/9*X^2=72/169 | | 4x-7y(54z)=0 |

Equations solver categories