5x^2+3x=19

Simple and best practice solution for 5x^2+3x=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 5x^2+3x=19 equation:


Simplifying
5x2 + 3x = 19

Reorder the terms:
3x + 5x2 = 19

Solving
3x + 5x2 = 19

Solving for variable 'x'.

Reorder the terms:
-19 + 3x + 5x2 = 19 + -19

Combine like terms: 19 + -19 = 0
-19 + 3x + 5x2 = 0

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

Divide each side by '5'.
-3.8 + 0.6x + x2 = 0

Move the constant term to the right:

Add '3.8' to each side of the equation.
-3.8 + 0.6x + 3.8 + x2 = 0 + 3.8

Reorder the terms:
-3.8 + 3.8 + 0.6x + x2 = 0 + 3.8

Combine like terms: -3.8 + 3.8 = 0.0
0.0 + 0.6x + x2 = 0 + 3.8
0.6x + x2 = 0 + 3.8

Combine like terms: 0 + 3.8 = 3.8
0.6x + x2 = 3.8

The x term is 0.6x.  Take half its coefficient (0.3).
Square it (0.09) and add it to both sides.

Add '0.09' to each side of the equation.
0.6x + 0.09 + x2 = 3.8 + 0.09

Reorder the terms:
0.09 + 0.6x + x2 = 3.8 + 0.09

Combine like terms: 3.8 + 0.09 = 3.89
0.09 + 0.6x + x2 = 3.89

Factor a perfect square on the left side:
(x + 0.3)(x + 0.3) = 3.89

Calculate the square root of the right side: 1.972308292

Break this problem into two subproblems by setting 
(x + 0.3) equal to 1.972308292 and -1.972308292.

Subproblem 1

x + 0.3 = 1.972308292 Simplifying x + 0.3 = 1.972308292 Reorder the terms: 0.3 + x = 1.972308292 Solving 0.3 + x = 1.972308292 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.3' to each side of the equation. 0.3 + -0.3 + x = 1.972308292 + -0.3 Combine like terms: 0.3 + -0.3 = 0.0 0.0 + x = 1.972308292 + -0.3 x = 1.972308292 + -0.3 Combine like terms: 1.972308292 + -0.3 = 1.672308292 x = 1.672308292 Simplifying x = 1.672308292

Subproblem 2

x + 0.3 = -1.972308292 Simplifying x + 0.3 = -1.972308292 Reorder the terms: 0.3 + x = -1.972308292 Solving 0.3 + x = -1.972308292 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.3' to each side of the equation. 0.3 + -0.3 + x = -1.972308292 + -0.3 Combine like terms: 0.3 + -0.3 = 0.0 0.0 + x = -1.972308292 + -0.3 x = -1.972308292 + -0.3 Combine like terms: -1.972308292 + -0.3 = -2.272308292 x = -2.272308292 Simplifying x = -2.272308292

Solution

The solution to the problem is based on the solutions from the subproblems. x = {1.672308292, -2.272308292}

See similar equations:

| a+.68=8.4 | | 6a+22=10a-18 | | 2l+2w=10+4l-4w | | 2(5-3v)=104 | | 7z+1=z-11 | | 7z+1=z-11 | | c+6/10=10/12 | | x-.10=17 | | X+28=75 | | y+66=1002 | | -8=-7y+3(y-4) | | b-26.0=6.2b | | 35+(14a+5)=180 | | 0.7x-2=5.5 | | 6x+3=25 | | 5y-6=7y-1 | | 14-ln(5-x)=0 | | -x*x+16x-48= | | 24x+72=6x^2 | | 2(n+9)+3(n+9)= | | x^3+3x^2+5x-1=0 | | -6u=-30 | | lne^6x=48 | | 2-3t=5t-4 | | (9x+15)+(6x+15)=180 | | -3(x+2)=-5x-(5-x) | | 3(2p-5)=2(3-2p) | | x-24=81 | | 3+2-6=3x | | 8b+3=3b+12 | | 14n-10-13n+7=10 | | 5u+7=-13 |

Equations solver categories