16x^2+37x-20=0

Simple and best practice solution for 16x^2+37x-20=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 16x^2+37x-20=0 equation:


Simplifying
16x2 + 37x + -20 = 0

Reorder the terms:
-20 + 37x + 16x2 = 0

Solving
-20 + 37x + 16x2 = 0

Solving for variable 'x'.

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

Divide each side by '16'.
-1.25 + 2.3125x + x2 = 0

Move the constant term to the right:

Add '1.25' to each side of the equation.
-1.25 + 2.3125x + 1.25 + x2 = 0 + 1.25

Reorder the terms:
-1.25 + 1.25 + 2.3125x + x2 = 0 + 1.25

Combine like terms: -1.25 + 1.25 = 0.00
0.00 + 2.3125x + x2 = 0 + 1.25
2.3125x + x2 = 0 + 1.25

Combine like terms: 0 + 1.25 = 1.25
2.3125x + x2 = 1.25

The x term is 2.3125x.  Take half its coefficient (1.15625).
Square it (1.336914063) and add it to both sides.

Add '1.336914063' to each side of the equation.
2.3125x + 1.336914063 + x2 = 1.25 + 1.336914063

Reorder the terms:
1.336914063 + 2.3125x + x2 = 1.25 + 1.336914063

Combine like terms: 1.25 + 1.336914063 = 2.586914063
1.336914063 + 2.3125x + x2 = 2.586914063

Factor a perfect square on the left side:
(x + 1.15625)(x + 1.15625) = 2.586914063

Calculate the square root of the right side: 1.608388654

Break this problem into two subproblems by setting 
(x + 1.15625) equal to 1.608388654 and -1.608388654.

Subproblem 1

x + 1.15625 = 1.608388654 Simplifying x + 1.15625 = 1.608388654 Reorder the terms: 1.15625 + x = 1.608388654 Solving 1.15625 + x = 1.608388654 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-1.15625' to each side of the equation. 1.15625 + -1.15625 + x = 1.608388654 + -1.15625 Combine like terms: 1.15625 + -1.15625 = 0.00000 0.00000 + x = 1.608388654 + -1.15625 x = 1.608388654 + -1.15625 Combine like terms: 1.608388654 + -1.15625 = 0.452138654 x = 0.452138654 Simplifying x = 0.452138654

Subproblem 2

x + 1.15625 = -1.608388654 Simplifying x + 1.15625 = -1.608388654 Reorder the terms: 1.15625 + x = -1.608388654 Solving 1.15625 + x = -1.608388654 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-1.15625' to each side of the equation. 1.15625 + -1.15625 + x = -1.608388654 + -1.15625 Combine like terms: 1.15625 + -1.15625 = 0.00000 0.00000 + x = -1.608388654 + -1.15625 x = -1.608388654 + -1.15625 Combine like terms: -1.608388654 + -1.15625 = -2.764638654 x = -2.764638654 Simplifying x = -2.764638654

Solution

The solution to the problem is based on the solutions from the subproblems. x = {0.452138654, -2.764638654}

See similar equations:

| 5x-8y-4x+9y-7x=0 | | 3(a-1)=25-a | | 3-6b=-7b-3 | | 7r-3=6r+2 | | 5n-2=-6+6n | | 5r+12=8r-3 | | X-(.1x)=130 | | x^2+9+6=0 | | -4r+3r=3+2r | | -x/6+4=5 | | 42x+1+137=180 | | 42x+1=137 | | 4x+5(x-1)-6x+3= | | 5x-8y-4x+9y-7x= | | -1=3+p/2 | | 75=10-5x | | 10(1-2y)=-5(y-1) | | 9(79-9y)+4y=18 | | 1/3(2x+1)=3(1-4x)+10 | | 10-6n=-44 | | 5z+10=105 | | 5(2t-1)=3(t+3) | | 51=1+10m | | x/2-10=x/5+1/2 | | 7(3z-4)=5(2z+1) | | -b/15+10=11 | | x^2+y^2=20x | | 7(4y-5)=11(2y-1) | | -2-5x(-2)-3x(-4)= | | 21=-3+6r | | -3x-7=-40 | | 7+10x+38=9+14x |

Equations solver categories