0=x^2-21x-46

Simple and best practice solution for 0=x^2-21x-46 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 0=x^2-21x-46 equation:


Simplifying
0 = x2 + -21x + -46

Reorder the terms:
0 = -46 + -21x + x2

Solving
0 = -46 + -21x + x2

Solving for variable 'x'.

Combine like terms: 0 + 46 = 46
46 + 21x + -1x2 = -46 + -21x + x2 + 46 + 21x + -1x2

Reorder the terms:
46 + 21x + -1x2 = -46 + 46 + -21x + 21x + x2 + -1x2

Combine like terms: -46 + 46 = 0
46 + 21x + -1x2 = 0 + -21x + 21x + x2 + -1x2
46 + 21x + -1x2 = -21x + 21x + x2 + -1x2

Combine like terms: -21x + 21x = 0
46 + 21x + -1x2 = 0 + x2 + -1x2
46 + 21x + -1x2 = x2 + -1x2

Combine like terms: x2 + -1x2 = 0
46 + 21x + -1x2 = 0

Factor a trinomial.
(23 + -1x)(2 + x) = 0

Subproblem 1

Set the factor '(23 + -1x)' equal to zero and attempt to solve: Simplifying 23 + -1x = 0 Solving 23 + -1x = 0 Move all terms containing x to the left, all other terms to the right. Add '-23' to each side of the equation. 23 + -23 + -1x = 0 + -23 Combine like terms: 23 + -23 = 0 0 + -1x = 0 + -23 -1x = 0 + -23 Combine like terms: 0 + -23 = -23 -1x = -23 Divide each side by '-1'. x = 23 Simplifying x = 23

Subproblem 2

Set the factor '(2 + x)' equal to zero and attempt to solve: Simplifying 2 + x = 0 Solving 2 + x = 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 + x = 0 + -2 Combine like terms: 2 + -2 = 0 0 + x = 0 + -2 x = 0 + -2 Combine like terms: 0 + -2 = -2 x = -2 Simplifying x = -2

Solution

x = {23, -2}

See similar equations:

| 2y-0.25x=1 | | 23=x-15 | | 3.253a+2.7-2.234a+3.019=2-2.7a | | 28+1.4x=-4.2 | | Log(8)=3 | | x^4-x^2-24x-144=0 | | -4(5x+2)+3=13-2x | | 2(x+5)*2=8 | | 52=4(-3m+4) | | V-1.3+2.9v=-3.6v-0.1 | | (x+2)*2=7 | | 12x^2-21x+9=0 | | f*-12=-2 | | 10x-2=2(5x-1) | | 80=x+.07x | | 4*cotx=cotx*sin^2x | | z+26=3z-58 | | 54a^3b^7/36a^-2b^10 | | 3q-72=q-10 | | 2n+1=5(2+n) | | 4s-30=s+24 | | 48=-4+4(4-3n) | | -12x^2+21x-9=0 | | 3x*2+5x-2=0 | | y=6+1.25x | | 15=k+4k | | x+69+3x-53=180 | | x-9x-3=51 | | 9w+21=-6(w+9) | | 6+12m+9m=6 | | 6h-5=1 | | 1857*x=594.24 |

Equations solver categories