x^2+9x+9x+81=x^2+7x+7x+49+x^2

Simple and best practice solution for x^2+9x+9x+81=x^2+7x+7x+49+x^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 x^2+9x+9x+81=x^2+7x+7x+49+x^2 equation: 


Simplifying
x2 + 9x + 9x + 81 = x2 + 7x + 7x + 49 + x2

Reorder the terms:
81 + 9x + 9x + x2 = x2 + 7x + 7x + 49 + x2

Combine like terms: 9x + 9x = 18x
81 + 18x + x2 = x2 + 7x + 7x + 49 + x2

Reorder the terms:
81 + 18x + x2 = 49 + 7x + 7x + x2 + x2

Combine like terms: 7x + 7x = 14x
81 + 18x + x2 = 49 + 14x + x2 + x2

Combine like terms: x2 + x2 = 2x2
81 + 18x + x2 = 49 + 14x + 2x2

Solving
81 + 18x + x2 = 49 + 14x + 2x2

Solving for variable 'x'.

Reorder the terms:
81 + -49 + 18x + -14x + x2 + -2x2 = 49 + 14x + 2x2 + -49 + -14x + -2x2

Combine like terms: 81 + -49 = 32
32 + 18x + -14x + x2 + -2x2 = 49 + 14x + 2x2 + -49 + -14x + -2x2

Combine like terms: 18x + -14x = 4x
32 + 4x + x2 + -2x2 = 49 + 14x + 2x2 + -49 + -14x + -2x2

Combine like terms: x2 + -2x2 = -1x2
32 + 4x + -1x2 = 49 + 14x + 2x2 + -49 + -14x + -2x2

Reorder the terms:
32 + 4x + -1x2 = 49 + -49 + 14x + -14x + 2x2 + -2x2

Combine like terms: 49 + -49 = 0
32 + 4x + -1x2 = 0 + 14x + -14x + 2x2 + -2x2
32 + 4x + -1x2 = 14x + -14x + 2x2 + -2x2

Combine like terms: 14x + -14x = 0
32 + 4x + -1x2 = 0 + 2x2 + -2x2
32 + 4x + -1x2 = 2x2 + -2x2

Combine like terms: 2x2 + -2x2 = 0
32 + 4x + -1x2 = 0

Factor a trinomial.
(8 + -1x)(4 + x) = 0


Subproblem 1
Set the factor '(8 + -1x)' equal to zero and attempt to solve:

Simplifying
8 + -1x = 0

Solving
8 + -1x = 0

Move all terms containing x to the left, all other terms to the right.

Add '-8' to each side of the equation.
8 + -8 + -1x = 0 + -8

Combine like terms: 8 + -8 = 0
0 + -1x = 0 + -8
-1x = 0 + -8

Combine like terms: 0 + -8 = -8
-1x = -8

Divide each side by '-1'.
x = 8

Simplifying
x = 8

Subproblem 2
Set the factor '(4 + x)' equal to zero and attempt to solve:

Simplifying
4 + x = 0

Solving
4 + x = 0

Move all terms containing x to the left, all other terms to the right.

Add '-4' to each side of the equation.
4 + -4 + x = 0 + -4

Combine like terms: 4 + -4 = 0
0 + x = 0 + -4
x = 0 + -4

Combine like terms: 0 + -4 = -4
x = -4

Simplifying
x = -4
Solution
x = {8, -4}

See similar equations:

| 200+7x=100-2 | | 5d-8=22 | | 3x+2y+11x-2=-4y | | 1.5w=w | | 2x+2=x+53 | | W=1.5w | | 0.04=9 | | 3m=3m+6 | | 297=3x^2+6x | | 14.9-9.5= | | 3x^2-7=47 | | y=1+x^2 | | 4x+3=7x+1 | | 2x-26=x+11 | | 3.2d=12.8 | | 297=(x+2)(x+3) | | 0.75(x-12)=12 | | .30-75x=x+.20 | | 4(x+12)=108 | | ln(1-cos((6x)^1/8) | | (x+6)*(x+8)=400 | | f(x)=25x+300 | | 4.8-12=3.4x-5 | | 6xn=36 | | x+6*x+8=400 | | (5x-18)=(4x+7) | | ln(0)+1=2ln(0) | | 2x-5=7x+7-x | | (3w-8)(1-w)=0 | | 5/3×-4/3x-1=8 | | 2(x-8)=36 | | 64x^3y^-2z^2/28x^6y^2z |

Equations solver categories