x^2=2(x+4)

Simple and best practice solution for x^2=2(x+4) 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=2(x+4) equation:


Simplifying
x2 = 2(x + 4)

Reorder the terms:
x2 = 2(4 + x)
x2 = (4 * 2 + x * 2)
x2 = (8 + 2x)

Solving
x2 = 8 + 2x

Solving for variable 'x'.

Reorder the terms:
-8 + -2x + x2 = 8 + 2x + -8 + -2x

Reorder the terms:
-8 + -2x + x2 = 8 + -8 + 2x + -2x

Combine like terms: 8 + -8 = 0
-8 + -2x + x2 = 0 + 2x + -2x
-8 + -2x + x2 = 2x + -2x

Combine like terms: 2x + -2x = 0
-8 + -2x + x2 = 0

Factor a trinomial.
(-2 + -1x)(4 + -1x) = 0

Subproblem 1

Set the factor '(-2 + -1x)' equal to zero and attempt to solve: Simplifying -2 + -1x = 0 Solving -2 + -1x = 0 Move all terms containing x to the left, all other terms to the right. Add '2' to each side of the equation. -2 + 2 + -1x = 0 + 2 Combine like terms: -2 + 2 = 0 0 + -1x = 0 + 2 -1x = 0 + 2 Combine like terms: 0 + 2 = 2 -1x = 2 Divide each side by '-1'. x = -2 Simplifying x = -2

Subproblem 2

Set the factor '(4 + -1x)' equal to zero and attempt to solve: Simplifying 4 + -1x = 0 Solving 4 + -1x = 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 + -1x = 0 + -4 Combine like terms: 4 + -4 = 0 0 + -1x = 0 + -4 -1x = 0 + -4 Combine like terms: 0 + -4 = -4 -1x = -4 Divide each side by '-1'. x = 4 Simplifying x = 4

Solution

x = {-2, 4}

See similar equations:

| -5/6w+1/6=-1/3w-1/4 | | 4.5-6(4.5)/9 | | X=2-i | | 0.7(x+6)=2.8(x-3) | | 2(2-2x-8x)+2(9x+6)=6 | | x^2-x=1/4 | | x-7=3x-11 | | x-2.2x+2.1=-5.4(x-3.5) | | 3/4(8x-6) | | 4x^2-4x-35=0 | | 30=(m^2+7m)+(m^2+7m) | | 6(8-4x)=-48 | | 2(x+3)-(x-3)=-1 | | 4(7-3v)=-3v-35 | | 8/3+10/3y=3y-3 | | 4m+3+3m=4+4m | | 8(x+2)+3=4x+4(4+x) | | 3b+84=9b | | -21-6x=-8(x+7)-3x | | 5(2n-3)=(5n+3)+6 | | x^2+10x+25=17 | | 8x-2=3(x+1)+5x-5 | | -30-5n=-6(n+6) | | -4(t-4)+7t=5t-1 | | 4a=7 | | -4(x+5)+3=6(x+4)+8 | | 6(y-7)/5=-3y | | t(t+3)=2(t+3) | | 4(7x+3)+5=28x+17 | | 3x+32=92 | | I=6(h-59)+103 | | 3x^5-5x^3+1=0 |

Equations solver categories