x=x^2+9

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


Simplifying
x = x2 + 9

Reorder the terms:
x = 9 + x2

Solving
x = 9 + x2

Solving for variable 'x'.

Reorder the terms:
-9 + x + -1x2 = 9 + x2 + -9 + -1x2

Reorder the terms:
-9 + x + -1x2 = 9 + -9 + x2 + -1x2

Combine like terms: 9 + -9 = 0
-9 + x + -1x2 = 0 + x2 + -1x2
-9 + x + -1x2 = x2 + -1x2

Combine like terms: x2 + -1x2 = 0
-9 + x + -1x2 = 0

Begin completing the square.  Divide all terms by
-1 the coefficient of the squared term: 

Divide each side by '-1'.
9 + -1x + x2 = 0

Move the constant term to the right:

Add '-9' to each side of the equation.
9 + -1x + -9 + x2 = 0 + -9

Reorder the terms:
9 + -9 + -1x + x2 = 0 + -9

Combine like terms: 9 + -9 = 0
0 + -1x + x2 = 0 + -9
-1x + x2 = 0 + -9

Combine like terms: 0 + -9 = -9
-1x + x2 = -9

The x term is x.  Take half its coefficient (0.5).
Square it (0.25) and add it to both sides.

Add '0.25' to each side of the equation.
-1x + 0.25 + x2 = -9 + 0.25

Reorder the terms:
0.25 + -1x + x2 = -9 + 0.25

Combine like terms: -9 + 0.25 = -8.75
0.25 + -1x + x2 = -8.75

Factor a perfect square on the left side:
(x + 0.5)(x + 0.5) = -8.75

Can't calculate square root of the right side.

The solution to this equation could not be determined.

See similar equations:

| 17x=0.34 | | x/2-1=31 | | -7x^6(-3x^2)= | | -1/4(x+8)+1/2(x+2)=x-3 | | -1/4(x+8)+1/2(x+2)=x | | 3-2k=(8k-3)/-3 | | 6+2r-4=9r+9-6r | | 4/5x-1/4x+14=7/10x | | 6/5x-1/4x+14=7/10x | | 2.55-3.1t=21.05 | | 2a^2-19a+9=0 | | 10log(x)=30 | | 4+2s-3=8s+28-3s | | 15+0.90=3(20+0.25) | | 8x^2(-10x^4+9x^3)=0 | | 8y^2x+12y^2x+34x=2x+42 | | 12y=-6(0)-3 | | 4(y+66)+4y=15344 | | 12y=-6(1)-3 | | a^5+7ab^4-8a^3b^2=0 | | -6(0.6666)+8y=-4 | | 3x+47/7+x+17/4=13 | | x/12=-28 | | -6(1.7777)+8y=-4 | | 3(y-6)+3y=126 | | 9(1.5)-4y=3 | | 5-9[8-(7y-2)]= | | 9(2/3)-4y=3 | | (20-2x)(30-2x)=404 | | -16/5+2(-2/3x+1)=63/10+1/1/6x | | 9(1)-4y=3 | | 4w^2-121=0 |

Equations solver categories