(x+2)*x=80

Simple and best practice solution for (x+2)*x=80 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)*x=80 equation:


Simplifying
(x + 2) * x = 80

Reorder the terms:
(2 + x) * x = 80

Reorder the terms for easier multiplication:
x(2 + x) = 80
(2 * x + x * x) = 80
(2x + x2) = 80

Solving
2x + x2 = 80

Solving for variable 'x'.

Reorder the terms:
-80 + 2x + x2 = 80 + -80

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

Factor a trinomial.
(-10 + -1x)(8 + -1x) = 0

Subproblem 1

Set the factor '(-10 + -1x)' equal to zero and attempt to solve: Simplifying -10 + -1x = 0 Solving -10 + -1x = 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 + -1x = 0 + 10 Combine like terms: -10 + 10 = 0 0 + -1x = 0 + 10 -1x = 0 + 10 Combine like terms: 0 + 10 = 10 -1x = 10 Divide each side by '-1'. x = -10 Simplifying x = -10

Subproblem 2

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

Solution

x = {-10, 8}

See similar equations:

| 4x^2-y^2-40x-14y+15=0 | | 2x+3-4=2x-1 | | 81-3x=24x+18 | | -69-9x=9x+21 | | 122-5x=4x+15 | | 0=-2x-4 | | 6n+18=6 | | (x+2)*x=8 | | (D^3+4D^2-3D-18)y=0 | | 0.4x+4.5=0.3x+2.5 | | 6a-6+4a=4a+24 | | p+6.5p=27 | | -12=6x-8x-22 | | 7(3-0.5k)=3k-5 | | .625y-7=3 | | 5(5-12)-24=3(s+2) | | -2x-y=10 | | -5.6x=-19.04 | | x(3x-1)=x^2+15 | | 6x-15y=60 | | 7x+3=5x+12 | | 3x^2-x^2-x=15 | | t-2(3w-2t)=2t+9 | | 8y=-64x+16 | | 5(3w-2)-7=23 | | x-x*0.2765=1200 | | 3(2z+1)=35 | | 7p^2=-36p-5 | | -2a+5+3a=14-21 | | x-x*0.2765=1000 | | x*2x=64 | | x^2-34*x+342=0 |

Equations solver categories