4x^2-25x+8=0

Simple and best practice solution for 4x^2-25x+8=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 4x^2-25x+8=0 equation:


Simplifying
4x2 + -25x + 8 = 0

Reorder the terms:
8 + -25x + 4x2 = 0

Solving
8 + -25x + 4x2 = 0

Solving for variable 'x'.

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

Divide each side by '4'.
2 + -6.25x + x2 = 0

Move the constant term to the right:

Add '-2' to each side of the equation.
2 + -6.25x + -2 + x2 = 0 + -2

Reorder the terms:
2 + -2 + -6.25x + x2 = 0 + -2

Combine like terms: 2 + -2 = 0
0 + -6.25x + x2 = 0 + -2
-6.25x + x2 = 0 + -2

Combine like terms: 0 + -2 = -2
-6.25x + x2 = -2

The x term is -6.25x.  Take half its coefficient (-3.125).
Square it (9.765625) and add it to both sides.

Add '9.765625' to each side of the equation.
-6.25x + 9.765625 + x2 = -2 + 9.765625

Reorder the terms:
9.765625 + -6.25x + x2 = -2 + 9.765625

Combine like terms: -2 + 9.765625 = 7.765625
9.765625 + -6.25x + x2 = 7.765625

Factor a perfect square on the left side:
(x + -3.125)(x + -3.125) = 7.765625

Calculate the square root of the right side: 2.786687101

Break this problem into two subproblems by setting 
(x + -3.125) equal to 2.786687101 and -2.786687101.

Subproblem 1

x + -3.125 = 2.786687101 Simplifying x + -3.125 = 2.786687101 Reorder the terms: -3.125 + x = 2.786687101 Solving -3.125 + x = 2.786687101 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '3.125' to each side of the equation. -3.125 + 3.125 + x = 2.786687101 + 3.125 Combine like terms: -3.125 + 3.125 = 0.000 0.000 + x = 2.786687101 + 3.125 x = 2.786687101 + 3.125 Combine like terms: 2.786687101 + 3.125 = 5.911687101 x = 5.911687101 Simplifying x = 5.911687101

Subproblem 2

x + -3.125 = -2.786687101 Simplifying x + -3.125 = -2.786687101 Reorder the terms: -3.125 + x = -2.786687101 Solving -3.125 + x = -2.786687101 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '3.125' to each side of the equation. -3.125 + 3.125 + x = -2.786687101 + 3.125 Combine like terms: -3.125 + 3.125 = 0.000 0.000 + x = -2.786687101 + 3.125 x = -2.786687101 + 3.125 Combine like terms: -2.786687101 + 3.125 = 0.338312899 x = 0.338312899 Simplifying x = 0.338312899

Solution

The solution to the problem is based on the solutions from the subproblems. x = {5.911687101, 0.338312899}

See similar equations:

| 23=9/5c+32 | | a/3=-2 | | 2/3x4 | | 2x+16-6=0 | | a/(x-1)+a/(x+1) | | (16x^3-9x-16x^2+9)/(x-1) | | 9x-4x+(4+x)=2(x-1) | | -39+x=-41 | | 10r^2-9r+2=0 | | (6y-18)=(2y+6) | | ln(7x+6)=4 | | 4a^2+4a+1/2a^2+3a+1 | | 10x-14=26 | | 2/3*21 | | 5+x=(24-x)-(19-2x) | | x-6+x=28 | | Y+.75x=4 | | 6-6(3x-2)=0 | | (-3x^6y^3)/9x^2y^2 | | -1/3p-7=-3 | | 5/3+2/3x=48/18+7/6x+5/6 | | 5c^2-14c-3=0 | | 3y=7y+7 | | x^2-10+29=0 | | 2*2/3 | | 6+5x-2=8x+19-6x | | Y^2-16y+39=0 | | 6+0=-2+2v | | 5x^2-3x-12=0 | | 3w^2-7w+3w-7=0 | | -7x-3=6-2x | | 9a^2+2a-7=0 |

Equations solver categories