4x^2+101x-65=0

Simple and best practice solution for 4x^2+101x-65=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+101x-65=0 equation:


Simplifying
4x2 + 101x + -65 = 0

Reorder the terms:
-65 + 101x + 4x2 = 0

Solving
-65 + 101x + 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'.
-16.25 + 25.25x + x2 = 0

Move the constant term to the right:

Add '16.25' to each side of the equation.
-16.25 + 25.25x + 16.25 + x2 = 0 + 16.25

Reorder the terms:
-16.25 + 16.25 + 25.25x + x2 = 0 + 16.25

Combine like terms: -16.25 + 16.25 = 0.00
0.00 + 25.25x + x2 = 0 + 16.25
25.25x + x2 = 0 + 16.25

Combine like terms: 0 + 16.25 = 16.25
25.25x + x2 = 16.25

The x term is 25.25x.  Take half its coefficient (12.625).
Square it (159.390625) and add it to both sides.

Add '159.390625' to each side of the equation.
25.25x + 159.390625 + x2 = 16.25 + 159.390625

Reorder the terms:
159.390625 + 25.25x + x2 = 16.25 + 159.390625

Combine like terms: 16.25 + 159.390625 = 175.640625
159.390625 + 25.25x + x2 = 175.640625

Factor a perfect square on the left side:
(x + 12.625)(x + 12.625) = 175.640625

Calculate the square root of the right side: 13.252947785

Break this problem into two subproblems by setting 
(x + 12.625) equal to 13.252947785 and -13.252947785.

Subproblem 1

x + 12.625 = 13.252947785 Simplifying x + 12.625 = 13.252947785 Reorder the terms: 12.625 + x = 13.252947785 Solving 12.625 + x = 13.252947785 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-12.625' to each side of the equation. 12.625 + -12.625 + x = 13.252947785 + -12.625 Combine like terms: 12.625 + -12.625 = 0.000 0.000 + x = 13.252947785 + -12.625 x = 13.252947785 + -12.625 Combine like terms: 13.252947785 + -12.625 = 0.627947785 x = 0.627947785 Simplifying x = 0.627947785

Subproblem 2

x + 12.625 = -13.252947785 Simplifying x + 12.625 = -13.252947785 Reorder the terms: 12.625 + x = -13.252947785 Solving 12.625 + x = -13.252947785 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-12.625' to each side of the equation. 12.625 + -12.625 + x = -13.252947785 + -12.625 Combine like terms: 12.625 + -12.625 = 0.000 0.000 + x = -13.252947785 + -12.625 x = -13.252947785 + -12.625 Combine like terms: -13.252947785 + -12.625 = -25.877947785 x = -25.877947785 Simplifying x = -25.877947785

Solution

The solution to the problem is based on the solutions from the subproblems. x = {0.627947785, -25.877947785}

See similar equations:

| 2x-10=5+7x | | 3s-17=-3+5s | | 6(a-8)+12=4(a-6) | | V=3.15r^2h | | 8=8z+5 | | -2(7C+-4)+-7C= | | 4t^2+7=11t | | 189=LWH | | 20y^2+7y+8=0 | | 19sin(12)=x | | -1+3[-5x-6(2+3x)]=-3x-3 | | -7(4z+-9)+-1= | | -1+3[-5x-6(2+3)]=-3x-3 | | 12y^2-24+50=0 | | -10(x-3)+34=-13-13 | | 30x-210-105=750 | | 2x^2+1-3=-6(x-1) | | 4[5-4(5-t)]-5=5[4(5t-5)+17]-73 | | (x^2)+(1.73x-4)=0 | | -2+-5t= | | 2m*2+10m-2m*2-8m+63*2= | | a^2-12g-28=0 | | X+0.3x=104 | | 8z-1=5z+23 | | 5(2g-8)=20 | | 0.10(y-3)+0.04y=0.12y-0.5 | | 2f+13+4f-4=45 | | 22-12=2(x-8) | | (x-20)2=40 | | 0.50x+0.25(50)=46.5 | | 5d+17=37 | | -3y-10=2y+10 |

Equations solver categories