x^2=-2x+15

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


Simplifying
x2 = -2x + 15

Reorder the terms:
x2 = 15 + -2x

Solving
x2 = 15 + -2x

Solving for variable 'x'.

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

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

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

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

Factor a trinomial.
(-5 + -1x)(3 + -1x) = 0

Subproblem 1

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

Subproblem 2

Set the factor '(3 + -1x)' equal to zero and attempt to solve: Simplifying 3 + -1x = 0 Solving 3 + -1x = 0 Move all terms containing x to the left, all other terms to the right. Add '-3' to each side of the equation. 3 + -3 + -1x = 0 + -3 Combine like terms: 3 + -3 = 0 0 + -1x = 0 + -3 -1x = 0 + -3 Combine like terms: 0 + -3 = -3 -1x = -3 Divide each side by '-1'. x = 3 Simplifying x = 3

Solution

x = {-5, 3}

See similar equations:

| 16/2^2+8x2^3-1/2(3^2*4-25)^2 | | x+y+6z=-30 | | L=2/(P-W) | | a^2-6=a | | 6/5(x-4)=5/2(x-6)+5 | | 2.7a=8.37 | | 10b-5b^2/b^2+3b-10 | | 2.7a=8.73 | | 11(-12z+16)= | | 6x+52+5x+84=180 | | 5/6a=-5/9 | | x/3+10=12 | | -6(10+4k)-2= | | 4x-(2)=22 | | 3(3-5-1)=4(3+3-5) | | 7m^2+8m+2=0 | | 6x41/2 | | n/6=100 | | 5(3x-6)=120 | | (4x-2)=22 | | v/8+15=27 | | x=50+(34/4) | | 24*r^3=81 | | P^2+11x+24=0 | | 3(-9-5x)=-27 | | 18-3x=-18 | | x=50+(74-40/4) | | x+20+10=20+9x | | 2(7x+3)=48 | | 3x+20+3x+100=150 | | (48x^14)^1/4 | | 5x-(5/2)=(7/2) |

Equations solver categories