x^2=5x+19

Simple and best practice solution for x^2=5x+19 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 x^2=5x+19 equation:


Simplifying
x2 = 5x + 19

Reorder the terms:
x2 = 19 + 5x

Solving
x2 = 19 + 5x

Solving for variable 'x'.

Reorder the terms:
-19 + -5x + x2 = 19 + 5x + -19 + -5x

Reorder the terms:
-19 + -5x + x2 = 19 + -19 + 5x + -5x

Combine like terms: 19 + -19 = 0
-19 + -5x + x2 = 0 + 5x + -5x
-19 + -5x + x2 = 5x + -5x

Combine like terms: 5x + -5x = 0
-19 + -5x + x2 = 0

Begin completing the square.

Move the constant term to the right:

Add '19' to each side of the equation.
-19 + -5x + 19 + x2 = 0 + 19

Reorder the terms:
-19 + 19 + -5x + x2 = 0 + 19

Combine like terms: -19 + 19 = 0
0 + -5x + x2 = 0 + 19
-5x + x2 = 0 + 19

Combine like terms: 0 + 19 = 19
-5x + x2 = 19

The x term is -5x.  Take half its coefficient (-2.5).
Square it (6.25) and add it to both sides.

Add '6.25' to each side of the equation.
-5x + 6.25 + x2 = 19 + 6.25

Reorder the terms:
6.25 + -5x + x2 = 19 + 6.25

Combine like terms: 19 + 6.25 = 25.25
6.25 + -5x + x2 = 25.25

Factor a perfect square on the left side:
(x + -2.5)(x + -2.5) = 25.25

Calculate the square root of the right side: 5.024937811

Break this problem into two subproblems by setting 
(x + -2.5) equal to 5.024937811 and -5.024937811.

Subproblem 1

x + -2.5 = 5.024937811 Simplifying x + -2.5 = 5.024937811 Reorder the terms: -2.5 + x = 5.024937811 Solving -2.5 + x = 5.024937811 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '2.5' to each side of the equation. -2.5 + 2.5 + x = 5.024937811 + 2.5 Combine like terms: -2.5 + 2.5 = 0.0 0.0 + x = 5.024937811 + 2.5 x = 5.024937811 + 2.5 Combine like terms: 5.024937811 + 2.5 = 7.524937811 x = 7.524937811 Simplifying x = 7.524937811

Subproblem 2

x + -2.5 = -5.024937811 Simplifying x + -2.5 = -5.024937811 Reorder the terms: -2.5 + x = -5.024937811 Solving -2.5 + x = -5.024937811 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '2.5' to each side of the equation. -2.5 + 2.5 + x = -5.024937811 + 2.5 Combine like terms: -2.5 + 2.5 = 0.0 0.0 + x = -5.024937811 + 2.5 x = -5.024937811 + 2.5 Combine like terms: -5.024937811 + 2.5 = -2.524937811 x = -2.524937811 Simplifying x = -2.524937811

Solution

The solution to the problem is based on the solutions from the subproblems. x = {7.524937811, -2.524937811}

See similar equations:

| 0=2x-9x+5 | | 8z^2+z-2=0 | | 3(-12x)=-24 | | 6x^2+x-15=8 | | (3x-2)(8x-7)= | | x^2+3x-8=x | | 8f^2-f-7=0 | | 5+r=1 | | 5x^2-28x+19=0 | | 5x+4x^2-84=0 | | trevin-5.8=1.2 | | 7d^2-9d+1=0 | | 5(2b+4)=5b+1 | | -8x^2+14x=0 | | 4x-3x-14=0 | | y^2-2by=56 | | 10+3y=25 | | -3x^2+15x+11=0 | | (X-4)(2x-12)=0 | | 4x-3x-4=0 | | y=-2x^2-3 | | 4a^2+18a+5=15 | | 8(x-3)+7=5x-22 | | 4x+7x-15x= | | 12x-2x-2x= | | (-x)-(-3x)= | | 1x^3+2x^2+3x+6= | | 31.02x+47.02=0 | | 14=9(2x-5) | | (4n+8)(5n-2)= | | p^2=-3 | | 90=0.5(x-6) |

Equations solver categories