18=6+29x-16x^2

Simple and best practice solution for 18=6+29x-16x^2 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 18=6+29x-16x^2 equation:


Simplifying
18 = 6 + 29x + -16x2

Solving
18 = 6 + 29x + -16x2

Solving for variable 'x'.

Combine like terms: 18 + -6 = 12
12 + -29x + 16x2 = 6 + 29x + -16x2 + -6 + -29x + 16x2

Reorder the terms:
12 + -29x + 16x2 = 6 + -6 + 29x + -29x + -16x2 + 16x2

Combine like terms: 6 + -6 = 0
12 + -29x + 16x2 = 0 + 29x + -29x + -16x2 + 16x2
12 + -29x + 16x2 = 29x + -29x + -16x2 + 16x2

Combine like terms: 29x + -29x = 0
12 + -29x + 16x2 = 0 + -16x2 + 16x2
12 + -29x + 16x2 = -16x2 + 16x2

Combine like terms: -16x2 + 16x2 = 0
12 + -29x + 16x2 = 0

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

Divide each side by '16'.
0.75 + -1.8125x + x2 = 0

Move the constant term to the right:

Add '-0.75' to each side of the equation.
0.75 + -1.8125x + -0.75 + x2 = 0 + -0.75

Reorder the terms:
0.75 + -0.75 + -1.8125x + x2 = 0 + -0.75

Combine like terms: 0.75 + -0.75 = 0.00
0.00 + -1.8125x + x2 = 0 + -0.75
-1.8125x + x2 = 0 + -0.75

Combine like terms: 0 + -0.75 = -0.75
-1.8125x + x2 = -0.75

The x term is -1.8125x.  Take half its coefficient (-0.90625).
Square it (0.8212890625) and add it to both sides.

Add '0.8212890625' to each side of the equation.
-1.8125x + 0.8212890625 + x2 = -0.75 + 0.8212890625

Reorder the terms:
0.8212890625 + -1.8125x + x2 = -0.75 + 0.8212890625

Combine like terms: -0.75 + 0.8212890625 = 0.0712890625
0.8212890625 + -1.8125x + x2 = 0.0712890625

Factor a perfect square on the left side:
(x + -0.90625)(x + -0.90625) = 0.0712890625

Calculate the square root of the right side: 0.267000117

Break this problem into two subproblems by setting 
(x + -0.90625) equal to 0.267000117 and -0.267000117.

Subproblem 1

x + -0.90625 = 0.267000117 Simplifying x + -0.90625 = 0.267000117 Reorder the terms: -0.90625 + x = 0.267000117 Solving -0.90625 + x = 0.267000117 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '0.90625' to each side of the equation. -0.90625 + 0.90625 + x = 0.267000117 + 0.90625 Combine like terms: -0.90625 + 0.90625 = 0.00000 0.00000 + x = 0.267000117 + 0.90625 x = 0.267000117 + 0.90625 Combine like terms: 0.267000117 + 0.90625 = 1.173250117 x = 1.173250117 Simplifying x = 1.173250117

Subproblem 2

x + -0.90625 = -0.267000117 Simplifying x + -0.90625 = -0.267000117 Reorder the terms: -0.90625 + x = -0.267000117 Solving -0.90625 + x = -0.267000117 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '0.90625' to each side of the equation. -0.90625 + 0.90625 + x = -0.267000117 + 0.90625 Combine like terms: -0.90625 + 0.90625 = 0.00000 0.00000 + x = -0.267000117 + 0.90625 x = -0.267000117 + 0.90625 Combine like terms: -0.267000117 + 0.90625 = 0.639249883 x = 0.639249883 Simplifying x = 0.639249883

Solution

The solution to the problem is based on the solutions from the subproblems. x = {1.173250117, 0.639249883}

See similar equations:

| f(x)=2x^2+10x-1 | | f(x)=2x^2+10-1 | | ln(3)=6x+5 | | f(x)=x^3 | | 0=-x-6.5 | | 5p=-30 | | 125+65x=175x | | 2x+3(1/5)=0 | | (3,5)m=-5 | | 16x^2-16X=3 | | 1.6q-2.4-3.4q=-2.8q-5.3 | | -45y+4y=10-45-14 | | 1.6q-2.4-3.4q=2.8q-5.3 | | -4y+16=14 | | -3/5n=9/20 | | -2/3h=8/9 | | 3+4(5x-8)=21 | | 2/5m=5 | | 2x+2x-30=4x+5x+5 | | 4/7r=1/2 | | ((x)/(x^2+9x+14))+((7)/(x^2+9x+14)) | | 6+2(3x)=4 | | 80000+209.00x=150015.00 | | 13x-4x-3=15 | | x-y-3z=-4 | | 125000+65x=0 | | 41=0.02a | | (x^2-1)/(3x^2-2x-1)=0 | | 2(4y+1)=10 | | 4x+9-12x=55x+18-17x+9 | | 4y+5y-6=21 | | -4+5x=21 |

Equations solver categories