0=x^2+2x-99

Simple and best practice solution for 0=x^2+2x-99 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+2x-99 equation:


Simplifying
0 = x2 + 2x + -99

Reorder the terms:
0 = -99 + 2x + x2

Solving
0 = -99 + 2x + x2

Solving for variable 'x'.

Combine like terms: 0 + 99 = 99
99 + -2x + -1x2 = -99 + 2x + x2 + 99 + -2x + -1x2

Reorder the terms:
99 + -2x + -1x2 = -99 + 99 + 2x + -2x + x2 + -1x2

Combine like terms: -99 + 99 = 0
99 + -2x + -1x2 = 0 + 2x + -2x + x2 + -1x2
99 + -2x + -1x2 = 2x + -2x + x2 + -1x2

Combine like terms: 2x + -2x = 0
99 + -2x + -1x2 = 0 + x2 + -1x2
99 + -2x + -1x2 = x2 + -1x2

Combine like terms: x2 + -1x2 = 0
99 + -2x + -1x2 = 0

Factor a trinomial.
(9 + -1x)(11 + x) = 0

Subproblem 1

Set the factor '(9 + -1x)' equal to zero and attempt to solve: Simplifying 9 + -1x = 0 Solving 9 + -1x = 0 Move all terms containing x to the left, all other terms to the right. Add '-9' to each side of the equation. 9 + -9 + -1x = 0 + -9 Combine like terms: 9 + -9 = 0 0 + -1x = 0 + -9 -1x = 0 + -9 Combine like terms: 0 + -9 = -9 -1x = -9 Divide each side by '-1'. x = 9 Simplifying x = 9

Subproblem 2

Set the factor '(11 + x)' equal to zero and attempt to solve: Simplifying 11 + x = 0 Solving 11 + x = 0 Move all terms containing x to the left, all other terms to the right. Add '-11' to each side of the equation. 11 + -11 + x = 0 + -11 Combine like terms: 11 + -11 = 0 0 + x = 0 + -11 x = 0 + -11 Combine like terms: 0 + -11 = -11 x = -11 Simplifying x = -11

Solution

x = {9, -11}

See similar equations:

| (3x^2)+4x+1= | | 6y+16=2(4y+3) | | x+1=9x^3+9x | | x+3y=120 | | 10s=5s+60 | | 17x-16=10x-63 | | x-3/2=-7 | | 400+50x=1400+10x | | 8(1-6x)-1=-8x-33 | | -5(2x-7)=11 | | x(x+7)=50 | | 3x+8+5x=5x-20 | | 19a-3(a-6)=663 | | 1/3(x+2)=12 | | -5x-x=2x-(4x+6) | | 12.50+2x=36.50 | | 2+2(8z-2)=5(5z+4)+3 | | 19a-3a-18=66 | | 13-2t+3t=-5-4 | | 6x-17=47+6x | | 2(5p-8)=-96 | | 5x-20+5x+4y=180 | | 2x+3=1x-7 | | 4b-8b=24 | | Y=X^3+15x^2+74x+120 | | y^2+45y-63=0 | | 1/2(6-a)=a | | 8x+17=-29+16x | | 8+-3=9 | | 3k-1= | | -6=5n+5+4 | | -3(-4x+5)=17 |

Equations solver categories