x^2+84=20x

Simple and best practice solution for x^2+84=20x 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+84=20x equation:


Simplifying
x2 + 84 = 20x

Reorder the terms:
84 + x2 = 20x

Solving
84 + x2 = 20x

Solving for variable 'x'.

Reorder the terms:
84 + -20x + x2 = 20x + -20x

Combine like terms: 20x + -20x = 0
84 + -20x + x2 = 0

Factor a trinomial.
(6 + -1x)(14 + -1x) = 0

Subproblem 1

Set the factor '(6 + -1x)' equal to zero and attempt to solve: Simplifying 6 + -1x = 0 Solving 6 + -1x = 0 Move all terms containing x to the left, all other terms to the right. Add '-6' to each side of the equation. 6 + -6 + -1x = 0 + -6 Combine like terms: 6 + -6 = 0 0 + -1x = 0 + -6 -1x = 0 + -6 Combine like terms: 0 + -6 = -6 -1x = -6 Divide each side by '-1'. x = 6 Simplifying x = 6

Subproblem 2

Set the factor '(14 + -1x)' equal to zero and attempt to solve: Simplifying 14 + -1x = 0 Solving 14 + -1x = 0 Move all terms containing x to the left, all other terms to the right. Add '-14' to each side of the equation. 14 + -14 + -1x = 0 + -14 Combine like terms: 14 + -14 = 0 0 + -1x = 0 + -14 -1x = 0 + -14 Combine like terms: 0 + -14 = -14 -1x = -14 Divide each side by '-1'. x = 14 Simplifying x = 14

Solution

x = {6, 14}

See similar equations:

| 5s-7=-42 | | 3x^2-10x+3= | | -12x^3-13x^2+15x= | | -8c-11=13 | | 36=(5+x)*x | | 2x^2-19x+24= | | 2x-3=x+3 | | 4x^2-5x-1= | | x^4-5x^2+x+2=0 | | 152-28=2 | | z^2-9z+8=0 | | -2q+5=19 | | x^2+3x+37= | | 28=-9k+10 | | 6x^2-x-1= | | 5x+7y=2 | | a^2+a=132 | | 4-j=5-3j | | 2x^2+x+1= | | 2x+17=2x+20 | | t^2-10t+25=0 | | f-(-8)=-9 | | 4x^2+33x=27 | | r^4=2r^3+24r^2 | | 25x^2-10x-3= | | 2(4x+1)-5=8x-3 | | 3+x=-1 | | -0.1666666666666667(x-18)+0.3333333333333333(x+3)=x+19 | | x+(-5)=-3 | | 2x^2+x-3= | | x+(-5)= | | x+78=206 |

Equations solver categories