-16x^2+31x+2=16

Simple and best practice solution for -16x^2+31x+2=16 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+31x+2=16 equation:


Simplifying
-16x2 + 31x + 2 = 16

Reorder the terms:
2 + 31x + -16x2 = 16

Solving
2 + 31x + -16x2 = 16

Solving for variable 'x'.

Reorder the terms:
2 + -16 + 31x + -16x2 = 16 + -16

Combine like terms: 2 + -16 = -14
-14 + 31x + -16x2 = 16 + -16

Combine like terms: 16 + -16 = 0
-14 + 31x + -16x2 = 0

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

Divide each side by '-16'.
0.875 + -1.9375x + x2 = 0

Move the constant term to the right:

Add '-0.875' to each side of the equation.
0.875 + -1.9375x + -0.875 + x2 = 0 + -0.875

Reorder the terms:
0.875 + -0.875 + -1.9375x + x2 = 0 + -0.875

Combine like terms: 0.875 + -0.875 = 0.000
0.000 + -1.9375x + x2 = 0 + -0.875
-1.9375x + x2 = 0 + -0.875

Combine like terms: 0 + -0.875 = -0.875
-1.9375x + x2 = -0.875

The x term is -1.9375x.  Take half its coefficient (-0.96875).
Square it (0.9384765625) and add it to both sides.

Add '0.9384765625' to each side of the equation.
-1.9375x + 0.9384765625 + x2 = -0.875 + 0.9384765625

Reorder the terms:
0.9384765625 + -1.9375x + x2 = -0.875 + 0.9384765625

Combine like terms: -0.875 + 0.9384765625 = 0.0634765625
0.9384765625 + -1.9375x + x2 = 0.0634765625

Factor a perfect square on the left side:
(x + -0.96875)(x + -0.96875) = 0.0634765625

Calculate the square root of the right side: 0.251945555

Break this problem into two subproblems by setting 
(x + -0.96875) equal to 0.251945555 and -0.251945555.

Subproblem 1

x + -0.96875 = 0.251945555 Simplifying x + -0.96875 = 0.251945555 Reorder the terms: -0.96875 + x = 0.251945555 Solving -0.96875 + x = 0.251945555 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '0.96875' to each side of the equation. -0.96875 + 0.96875 + x = 0.251945555 + 0.96875 Combine like terms: -0.96875 + 0.96875 = 0.00000 0.00000 + x = 0.251945555 + 0.96875 x = 0.251945555 + 0.96875 Combine like terms: 0.251945555 + 0.96875 = 1.220695555 x = 1.220695555 Simplifying x = 1.220695555

Subproblem 2

x + -0.96875 = -0.251945555 Simplifying x + -0.96875 = -0.251945555 Reorder the terms: -0.96875 + x = -0.251945555 Solving -0.96875 + x = -0.251945555 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '0.96875' to each side of the equation. -0.96875 + 0.96875 + x = -0.251945555 + 0.96875 Combine like terms: -0.96875 + 0.96875 = 0.00000 0.00000 + x = -0.251945555 + 0.96875 x = -0.251945555 + 0.96875 Combine like terms: -0.251945555 + 0.96875 = 0.716804445 x = 0.716804445 Simplifying x = 0.716804445

Solution

The solution to the problem is based on the solutions from the subproblems. x = {1.220695555, 0.716804445}

See similar equations:

| f=gm1m2/r2 | | 156x=3 | | 2-5i)/(-2-3i) | | 6x-2x-2=12 | | 3x^2(2y+5x)=0 | | (8x-5)*(5x-1)= | | log(3)(6x)=2 | | 7/12-1/6 | | a×4/b=2 | | 4(4)+y=15 | | 81x5/6 | | x^2+z^2=81 | | 2(3x-7)-5(-2x+6)= | | 4m-4n^2=2m-72 | | y+7(4)=4 | | x=729929+02083*2001/2 | | y+7(-1)=4 | | 3x-2(1)=0 | | 2(3x+7)=46 | | 3(-3)-2y=0 | | f(x)=3.8x+22 | | 5(3)+3x=-15 | | 5y+3(3)=-15 | | 15n^3+6n^2=0 | | 9h/5-4=h | | 5y+3(-5)=-15 | | 44/22 | | 250x^3-128= | | (3)=x^2-7x+4 | | f(3)=x^2-7x+4 | | 2(a-b)-x(a-b)/(a-b)(2-x) | | 15x^2-12x+Mx+4=0 |

Equations solver categories