2x^2=6x+20

Simple and best practice solution for 2x^2=6x+20 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 2x^2=6x+20 equation:


Simplifying
2x2 = 6x + 20

Reorder the terms:
2x2 = 20 + 6x

Solving
2x2 = 20 + 6x

Solving for variable 'x'.

Reorder the terms:
-20 + -6x + 2x2 = 20 + 6x + -20 + -6x

Reorder the terms:
-20 + -6x + 2x2 = 20 + -20 + 6x + -6x

Combine like terms: 20 + -20 = 0
-20 + -6x + 2x2 = 0 + 6x + -6x
-20 + -6x + 2x2 = 6x + -6x

Combine like terms: 6x + -6x = 0
-20 + -6x + 2x2 = 0

Factor out the Greatest Common Factor (GCF), '2'.
2(-10 + -3x + x2) = 0

Factor a trinomial.
2((-2 + -1x)(5 + -1x)) = 0

Ignore the factor 2.

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 '(5 + -1x)' equal to zero and attempt to solve: Simplifying 5 + -1x = 0 Solving 5 + -1x = 0 Move all terms containing x to the left, all other terms to the right. Add '-5' to each side of the equation. 5 + -5 + -1x = 0 + -5 Combine like terms: 5 + -5 = 0 0 + -1x = 0 + -5 -1x = 0 + -5 Combine like terms: 0 + -5 = -5 -1x = -5 Divide each side by '-1'. x = 5 Simplifying x = 5

Solution

x = {-2, 5}

See similar equations:

| 2x^4-x^3-6x+3=0 | | 10(2x+6)-2=20 | | 2y-5=y+4 | | 5(5t-3e)=-67 | | n^2=8+7n | | c^2+6c-9=0 | | x^3-2x^2-8x=0 | | 22d^3+33d+11=x | | 2-2x-8= | | h=3+29t-16t^2 | | 3(x+3)=2(0.5x+7) | | 6m^2-3m+4-8m=x | | 3.1+5.1r=22.919+10.41r | | 3.1+5.1r=22.919+10.41 | | -c^3+5c^2+44c+60=0 | | x+(x+475000)=600000000 | | 2x+y=105 | | 3x^2+4x=8 | | 5(2u+3w)-2(5u-7w)= | | 8(15-0.3)= | | -(6(2)+2)-(-5(2)-4)=0 | | 6a^2+11a-65=0 | | 2(x-3.4)=0.5x-5 | | 5(x-3y)+2(4y-x)= | | 3x^2-x-140=0 | | (x-1)(2x+1)= | | 1t+14-11t= | | 110*60= | | 2.3x+1.6-1.7x+12.5=11.4+1.4x-2.8 | | -17+6= | | 3y+7(2y-4)=7-12 | | -5y+x=6 |

Equations solver categories