9.4=0.01x^2+0.2x+8.92

Simple and best practice solution for 9.4=0.01x^2+0.2x+8.92 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 9.4=0.01x^2+0.2x+8.92 equation:


Simplifying
9.4 = 0.01x2 + 0.2x + 8.92

Reorder the terms:
9.4 = 8.92 + 0.2x + 0.01x2

Solving
9.4 = 8.92 + 0.2x + 0.01x2

Solving for variable 'x'.

Combine like terms: 9.4 + -8.92 = 0.48
0.48 + -0.2x + -0.01x2 = 8.92 + 0.2x + 0.01x2 + -8.92 + -0.2x + -0.01x2

Reorder the terms:
0.48 + -0.2x + -0.01x2 = 8.92 + -8.92 + 0.2x + -0.2x + 0.01x2 + -0.01x2

Combine like terms: 8.92 + -8.92 = 0.00
0.48 + -0.2x + -0.01x2 = 0.00 + 0.2x + -0.2x + 0.01x2 + -0.01x2
0.48 + -0.2x + -0.01x2 = 0.2x + -0.2x + 0.01x2 + -0.01x2

Combine like terms: 0.2x + -0.2x = 0.0
0.48 + -0.2x + -0.01x2 = 0.0 + 0.01x2 + -0.01x2
0.48 + -0.2x + -0.01x2 = 0.01x2 + -0.01x2

Combine like terms: 0.01x2 + -0.01x2 = 0.00
0.48 + -0.2x + -0.01x2 = 0.00

Begin completing the square.  Divide all terms by
-0.01 the coefficient of the squared term: 

Divide each side by '-0.01'.
-48 + 20x + x2 = 0

Move the constant term to the right:

Add '48' to each side of the equation.
-48 + 20x + 48 + x2 = 0 + 48

Reorder the terms:
-48 + 48 + 20x + x2 = 0 + 48

Combine like terms: -48 + 48 = 0
0 + 20x + x2 = 0 + 48
20x + x2 = 0 + 48

Combine like terms: 0 + 48 = 48
20x + x2 = 48

The x term is 20x.  Take half its coefficient (10).
Square it (100) and add it to both sides.

Add '100' to each side of the equation.
20x + 100 + x2 = 48 + 100

Reorder the terms:
100 + 20x + x2 = 48 + 100

Combine like terms: 48 + 100 = 148
100 + 20x + x2 = 148

Factor a perfect square on the left side:
(x + 10)(x + 10) = 148

Calculate the square root of the right side: 12.165525061

Break this problem into two subproblems by setting 
(x + 10) equal to 12.165525061 and -12.165525061.

Subproblem 1

x + 10 = 12.165525061 Simplifying x + 10 = 12.165525061 Reorder the terms: 10 + x = 12.165525061 Solving 10 + x = 12.165525061 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-10' to each side of the equation. 10 + -10 + x = 12.165525061 + -10 Combine like terms: 10 + -10 = 0 0 + x = 12.165525061 + -10 x = 12.165525061 + -10 Combine like terms: 12.165525061 + -10 = 2.165525061 x = 2.165525061 Simplifying x = 2.165525061

Subproblem 2

x + 10 = -12.165525061 Simplifying x + 10 = -12.165525061 Reorder the terms: 10 + x = -12.165525061 Solving 10 + x = -12.165525061 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-10' to each side of the equation. 10 + -10 + x = -12.165525061 + -10 Combine like terms: 10 + -10 = 0 0 + x = -12.165525061 + -10 x = -12.165525061 + -10 Combine like terms: -12.165525061 + -10 = -22.165525061 x = -22.165525061 Simplifying x = -22.165525061

Solution

The solution to the problem is based on the solutions from the subproblems. x = {2.165525061, -22.165525061}

See similar equations:

| C+2d+3c-(-4)d= | | 12.5xS=1875 | | 0=715x-10500-x^2 | | F=25rd^2 | | 2=t-7 | | (x^2)-20x-20=0 | | -3(3x-7)=48 | | 8+6x+6x=-124 | | X+2x+9x+2= | | 8x+10(x-6)=56 | | 5488x=1454 | | 2x+3ydx+y+2dy=0 | | 6(g-14)+5(g-18)=2 | | 3y-2y-5y=38 | | 3y-2y-5y=38 | | 3+3(x-4)=11-8(x-5) | | n+3.5=.7 | | (X+11)12= | | 4xsquared-14x-194=0 | | 2n+5=15 | | 4x+7=4x+2 | | (6x+32)+(17x-1)=100 | | 2a-5+6a-9= | | 5z+4=z+3 | | x^2(x^2+3x+2)=0 | | 6m^2-4m= | | 3y+12x=3 | | 3y+12x=3 | | 2.27k-0.27k+6=11.0 | | -6+3a=2 | | 3+-5x=28 | | 2x-5=x^2-3x-1 |

Equations solver categories