3x^2+71=2x^2-18x-9

Simple and best practice solution for 3x^2+71=2x^2-18x-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 3x^2+71=2x^2-18x-9 equation: 


Simplifying
3x2 + 71 = 2x2 + -18x + -9

Reorder the terms:
71 + 3x2 = 2x2 + -18x + -9

Reorder the terms:
71 + 3x2 = -9 + -18x + 2x2

Solving
71 + 3x2 = -9 + -18x + 2x2

Solving for variable 'x'.

Reorder the terms:
71 + 9 + 18x + 3x2 + -2x2 = -9 + -18x + 2x2 + 9 + 18x + -2x2

Combine like terms: 71 + 9 = 80
80 + 18x + 3x2 + -2x2 = -9 + -18x + 2x2 + 9 + 18x + -2x2

Combine like terms: 3x2 + -2x2 = 1x2
80 + 18x + 1x2 = -9 + -18x + 2x2 + 9 + 18x + -2x2

Reorder the terms:
80 + 18x + 1x2 = -9 + 9 + -18x + 18x + 2x2 + -2x2

Combine like terms: -9 + 9 = 0
80 + 18x + 1x2 = 0 + -18x + 18x + 2x2 + -2x2
80 + 18x + 1x2 = -18x + 18x + 2x2 + -2x2

Combine like terms: -18x + 18x = 0
80 + 18x + 1x2 = 0 + 2x2 + -2x2
80 + 18x + 1x2 = 2x2 + -2x2

Combine like terms: 2x2 + -2x2 = 0
80 + 18x + 1x2 = 0

Factor a trinomial.
(10 + x)(8 + x) = 0


Subproblem 1
Set the factor '(10 + x)' equal to zero and attempt to solve:

Simplifying
10 + x = 0

Solving
10 + x = 0

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 = 0 + -10

Combine like terms: 10 + -10 = 0
0 + x = 0 + -10
x = 0 + -10

Combine like terms: 0 + -10 = -10
x = -10

Simplifying
x = -10

Subproblem 2
Set the factor '(8 + x)' equal to zero and attempt to solve:

Simplifying
8 + x = 0

Solving
8 + x = 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 + x = 0 + -8

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

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

Simplifying
x = -8
Solution
x = {-10, -8}

See similar equations:

| 12-5h=6p+8 | | 4x-6(-2x-z+14)+3z=5 | | a(5a-16)=16 | | .333x+2(.333+5)=12 | | -36+y^2-5y=0 | | -7+x=x/10-16 | | 9-3(2x-1)=3(2x+5)-3x | | 19-r=-(5-8r)+3r | | -3(12-3y)-9y=7 | | 5x^3-x^2-15x+3=0 | | z*(-32)=448 | | 2x=5+4y | | 2x^2+3x=99 | | 3.1d(2d+7)-6.2d-6.2d=19.53 | | 2x=37+4x | | 7(42-3w)=32 | | x^5+10x^4-x^2+12x=20 | | -4.1x+1.4=-1.3 | | 10(150)+15x=2580 | | -24-2t+t^2=0 | | P^3+P^2-3P+10=0 | | y*7=154 | | 9+n= | | -0.8x+2.3=-4 | | 3/4*5/8= | | 15x-2=35 | | y*(-24)=432 | | h-2h-8=0 | | 4.6b+27.8=50.72 | | 2.3(x-6.1)=12.88 | | 5(8x+3)=3(9x-5) | | 10(x-18)=70 |

Equations solver categories