5x^2-10x-23=0

Simple and best practice solution for 5x^2-10x-23=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 5x^2-10x-23=0 equation:


Simplifying
5x2 + -10x + -23 = 0

Reorder the terms:
-23 + -10x + 5x2 = 0

Solving
-23 + -10x + 5x2 = 0

Solving for variable 'x'.

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

Divide each side by '5'.
-4.6 + -2x + x2 = 0

Move the constant term to the right:

Add '4.6' to each side of the equation.
-4.6 + -2x + 4.6 + x2 = 0 + 4.6

Reorder the terms:
-4.6 + 4.6 + -2x + x2 = 0 + 4.6

Combine like terms: -4.6 + 4.6 = 0.0
0.0 + -2x + x2 = 0 + 4.6
-2x + x2 = 0 + 4.6

Combine like terms: 0 + 4.6 = 4.6
-2x + x2 = 4.6

The x term is -2x.  Take half its coefficient (-1).
Square it (1) and add it to both sides.

Add '1' to each side of the equation.
-2x + 1 + x2 = 4.6 + 1

Reorder the terms:
1 + -2x + x2 = 4.6 + 1

Combine like terms: 4.6 + 1 = 5.6
1 + -2x + x2 = 5.6

Factor a perfect square on the left side:
(x + -1)(x + -1) = 5.6

Calculate the square root of the right side: 2.366431913

Break this problem into two subproblems by setting 
(x + -1) equal to 2.366431913 and -2.366431913.

Subproblem 1

x + -1 = 2.366431913 Simplifying x + -1 = 2.366431913 Reorder the terms: -1 + x = 2.366431913 Solving -1 + x = 2.366431913 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '1' to each side of the equation. -1 + 1 + x = 2.366431913 + 1 Combine like terms: -1 + 1 = 0 0 + x = 2.366431913 + 1 x = 2.366431913 + 1 Combine like terms: 2.366431913 + 1 = 3.366431913 x = 3.366431913 Simplifying x = 3.366431913

Subproblem 2

x + -1 = -2.366431913 Simplifying x + -1 = -2.366431913 Reorder the terms: -1 + x = -2.366431913 Solving -1 + x = -2.366431913 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '1' to each side of the equation. -1 + 1 + x = -2.366431913 + 1 Combine like terms: -1 + 1 = 0 0 + x = -2.366431913 + 1 x = -2.366431913 + 1 Combine like terms: -2.366431913 + 1 = -1.366431913 x = -1.366431913 Simplifying x = -1.366431913

Solution

The solution to the problem is based on the solutions from the subproblems. x = {3.366431913, -1.366431913}

See similar equations:

| 1/4-i | | 3/x*1/12 | | log[5](9x-5)-log[5](x-3)=2 | | 145-16x^2=0 | | 1/14*420 | | 80x+675(2)=2310 | | 3/12x | | 80x+675=2310 | | log(5-2x)=log(3x+1) | | x^4-5x=24 | | (r-6)(8r-5)= | | (17b-8)-4(4b+3)=-4 | | 0=4x^2-7x-8 | | k/4+4=9 | | [3(x+1)+9]=15 | | X/2+8=-7 | | 6r-17=7 | | X+2(-2X+5)=1 | | Y/3-9=5 | | x^5=49x | | -16t^2+5776=0 | | h=-0.021d^2+0.9d+7 | | 93.96=4.7p+8.7p+2.1 | | -16t^2+64t+960=0 | | -9/5+2/3u=-3/2 | | 4n-9=2n+11 | | 4y+3+x=28 | | (w-4)(w+6-4)2=182 | | -6/x=-9 | | 9X^3-12X^2-4X+8=0 | | 5x-1+13-x= | | 4t-9(t^1/2)+7 |

Equations solver categories