x^2-56=-x

Simple and best practice solution for x^2-56=-x 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^2-56=-x equation:


Simplifying
x2 + -56 = -1x

Reorder the terms:
-56 + x2 = -1x

Solving
-56 + x2 = -1x

Solving for variable 'x'.

Reorder the terms:
-56 + x + x2 = -1x + x

Combine like terms: -1x + x = 0
-56 + x + x2 = 0

Factor a trinomial.
(-8 + -1x)(7 + -1x) = 0

Subproblem 1

Set the factor '(-8 + -1x)' equal to zero and attempt to solve: Simplifying -8 + -1x = 0 Solving -8 + -1x = 0 Move all terms containing x to the left, all other terms to the right. Add '8' to each side of the equation. -8 + 8 + -1x = 0 + 8 Combine like terms: -8 + 8 = 0 0 + -1x = 0 + 8 -1x = 0 + 8 Combine like terms: 0 + 8 = 8 -1x = 8 Divide each side by '-1'. x = -8 Simplifying x = -8

Subproblem 2

Set the factor '(7 + -1x)' equal to zero and attempt to solve: Simplifying 7 + -1x = 0 Solving 7 + -1x = 0 Move all terms containing x to the left, all other terms to the right. Add '-7' to each side of the equation. 7 + -7 + -1x = 0 + -7 Combine like terms: 7 + -7 = 0 0 + -1x = 0 + -7 -1x = 0 + -7 Combine like terms: 0 + -7 = -7 -1x = -7 Divide each side by '-1'. x = 7 Simplifying x = 7

Solution

x = {-8, 7}

See similar equations:

| (3y^2)+16y+5= | | P+(26+P)+(2P-28)=638 | | r^2-3r=40 | | 5s^2=36s+32 | | 4x+17+2(x-8)+4(x+5)=334 | | x^2+6x-1=6 | | 115.52=100(1+0.00388*t) | | 45x-34x^2=78 | | a^2+2a-33=-9 | | v+(v-33.6)+(v+25.3)=188.5 | | -x^3+9x^2+52x= | | 9x^2-169=0 | | x^2=19.6 | | -3y+6=-4y+1 | | 11=-z+6 | | 4n^2-7=-68 | | y+6x=7 | | 10+81b^2=46 | | x^2=72.9 | | p^2+5=96 | | -(-7x)=(-21) | | 5.1x=27.54 | | n^2=3 | | 7.5x=19.5 | | 2x+18=292 | | 14=-z+9 | | 2ln(x-3)=1 | | 6x^2+1x-2=0 | | x^2=29.3 | | -(-4x)=(-74) | | 4x^2-66=5x^2+17x | | 4x^2-66=5x^2+17 |

Equations solver categories