9x^2=-2x+2

Simple and best practice solution for 9x^2=-2x+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 9x^2=-2x+2 equation:


Simplifying
9x2 = -2x + 2

Reorder the terms:
9x2 = 2 + -2x

Solving
9x2 = 2 + -2x

Solving for variable 'x'.

Reorder the terms:
-2 + 2x + 9x2 = 2 + -2x + -2 + 2x

Reorder the terms:
-2 + 2x + 9x2 = 2 + -2 + -2x + 2x

Combine like terms: 2 + -2 = 0
-2 + 2x + 9x2 = 0 + -2x + 2x
-2 + 2x + 9x2 = -2x + 2x

Combine like terms: -2x + 2x = 0
-2 + 2x + 9x2 = 0

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

Divide each side by '9'.
-0.2222222222 + 0.2222222222x + x2 = 0

Move the constant term to the right:

Add '0.2222222222' to each side of the equation.
-0.2222222222 + 0.2222222222x + 0.2222222222 + x2 = 0 + 0.2222222222

Reorder the terms:
-0.2222222222 + 0.2222222222 + 0.2222222222x + x2 = 0 + 0.2222222222

Combine like terms: -0.2222222222 + 0.2222222222 = 0.0000000000
0.0000000000 + 0.2222222222x + x2 = 0 + 0.2222222222
0.2222222222x + x2 = 0 + 0.2222222222

Combine like terms: 0 + 0.2222222222 = 0.2222222222
0.2222222222x + x2 = 0.2222222222

The x term is 0.2222222222x.  Take half its coefficient (0.1111111111).
Square it (0.01234567901) and add it to both sides.

Add '0.01234567901' to each side of the equation.
0.2222222222x + 0.01234567901 + x2 = 0.2222222222 + 0.01234567901

Reorder the terms:
0.01234567901 + 0.2222222222x + x2 = 0.2222222222 + 0.01234567901

Combine like terms: 0.2222222222 + 0.01234567901 = 0.23456790121
0.01234567901 + 0.2222222222x + x2 = 0.23456790121

Factor a perfect square on the left side:
(x + 0.1111111111)(x + 0.1111111111) = 0.23456790121

Calculate the square root of the right side: 0.484322105

Break this problem into two subproblems by setting 
(x + 0.1111111111) equal to 0.484322105 and -0.484322105.

Subproblem 1

x + 0.1111111111 = 0.484322105 Simplifying x + 0.1111111111 = 0.484322105 Reorder the terms: 0.1111111111 + x = 0.484322105 Solving 0.1111111111 + x = 0.484322105 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.1111111111' to each side of the equation. 0.1111111111 + -0.1111111111 + x = 0.484322105 + -0.1111111111 Combine like terms: 0.1111111111 + -0.1111111111 = 0.0000000000 0.0000000000 + x = 0.484322105 + -0.1111111111 x = 0.484322105 + -0.1111111111 Combine like terms: 0.484322105 + -0.1111111111 = 0.3732109939 x = 0.3732109939 Simplifying x = 0.3732109939

Subproblem 2

x + 0.1111111111 = -0.484322105 Simplifying x + 0.1111111111 = -0.484322105 Reorder the terms: 0.1111111111 + x = -0.484322105 Solving 0.1111111111 + x = -0.484322105 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.1111111111' to each side of the equation. 0.1111111111 + -0.1111111111 + x = -0.484322105 + -0.1111111111 Combine like terms: 0.1111111111 + -0.1111111111 = 0.0000000000 0.0000000000 + x = -0.484322105 + -0.1111111111 x = -0.484322105 + -0.1111111111 Combine like terms: -0.484322105 + -0.1111111111 = -0.5954332161 x = -0.5954332161 Simplifying x = -0.5954332161

Solution

The solution to the problem is based on the solutions from the subproblems. x = {0.3732109939, -0.5954332161}

See similar equations:

| 30+4L=100 | | 3t-10=28 | | 5(3.2+0.2y)+y=16 | | -4(-3+10x)-7(x-10)=-11x+5x | | 10y-7y-5=52.72 | | (a)-13+24= | | 3.2+0.2y+y=16 | | x+(x+6)=120 | | b/r–c/r=1 | | 8=5-3g | | 29/18/4/9 | | 4x^2=12x^2-24x | | -2/5v-3/5=6v-1/2 | | (9x+2)*(2x+1)=0 | | -1/4-(-9/20) | | -4+3.2x-6= | | 7(-22/3)-2((-22/3)-7) | | 6-18-18x=0 | | 6-36x=0 | | 56+x=44 | | 23x-13y=-11 | | 3-3w=9 | | 3(6x+9-9)+8=70-2x | | (3g-2h)(8)=0 | | 2/3=9/x | | 1/3(6x-9)=4x-5 | | 14=2(8)+1 | | x+-24=18 | | 1/3(6x-9)=4c-5 | | 16/(2x^2) | | 4p^2-6p-5=0 | | (x+2)2x+5=11(x+2) |

Equations solver categories