9=x^2+2x-15

Simple and best practice solution for 9=x^2+2x-15 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 9=x^2+2x-15 equation:


Simplifying
9 = x2 + 2x + -15

Reorder the terms:
9 = -15 + 2x + x2

Solving
9 = -15 + 2x + x2

Solving for variable 'x'.

Combine like terms: 9 + 15 = 24
24 + -2x + -1x2 = -15 + 2x + x2 + 15 + -2x + -1x2

Reorder the terms:
24 + -2x + -1x2 = -15 + 15 + 2x + -2x + x2 + -1x2

Combine like terms: -15 + 15 = 0
24 + -2x + -1x2 = 0 + 2x + -2x + x2 + -1x2
24 + -2x + -1x2 = 2x + -2x + x2 + -1x2

Combine like terms: 2x + -2x = 0
24 + -2x + -1x2 = 0 + x2 + -1x2
24 + -2x + -1x2 = x2 + -1x2

Combine like terms: x2 + -1x2 = 0
24 + -2x + -1x2 = 0

Factor a trinomial.
(4 + -1x)(6 + x) = 0

Subproblem 1

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

Subproblem 2

Set the factor '(6 + x)' equal to zero and attempt to solve: Simplifying 6 + x = 0 Solving 6 + x = 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 + x = 0 + -6 Combine like terms: 6 + -6 = 0 0 + x = 0 + -6 x = 0 + -6 Combine like terms: 0 + -6 = -6 x = -6 Simplifying x = -6

Solution

x = {4, -6}

See similar equations:

| X^2+14x+48=168 | | x+0.2x=120 | | solvex+0.2x=120 | | x/4-9=x/7 | | X^2+14x-48=168 | | x/5=4x-57 | | 4(3b-3m)-9= | | 3.4(v+1)=13.6 | | 32=5x-x | | 19(p-942)=874 | | -3-11= | | 6=-2(t+17) | | 3xln(x)=2ln(x) | | 46/200 | | 997=9u+52 | | 365=-5(w-978) | | 3-11=-9/z | | X-9=-3+6 | | 1(6x+3)= | | 1. 3x+y=7 | | -5(x+2)=x-4+2(2x+4) | | -2(-9u+6)-4u=2(u-1)-1 | | (36+2w)(15+2W)=910 | | x*0.08=36.18 | | 7(x+6)-2= | | 5(c-8)-18=-18 | | 7448929019283847492001010110109192838377446747478819199191919198744x+74748382991928374647747474848488484838392992929299292=74747474773838292920101019199283837747388287477392910109201010101002928282783777373764657448 | | 14=-9(u+10)-4 | | 1000=2450-4x^2 | | u^2-5u-36=(2u-9)(u+3) | | 3x^2+-24x+-120=0 | | .24(24)+.06=.12(6+x) |

Equations solver categories