8=x^2+7x

Simple and best practice solution for 8=x^2+7x 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 8=x^2+7x equation:


Simplifying
8 = x2 + 7x

Reorder the terms:
8 = 7x + x2

Solving
8 = 7x + x2

Solving for variable 'x'.

Reorder the terms:
8 + -7x + -1x2 = 7x + -7x + x2 + -1x2

Combine like terms: 7x + -7x = 0
8 + -7x + -1x2 = 0 + x2 + -1x2
8 + -7x + -1x2 = x2 + -1x2

Combine like terms: x2 + -1x2 = 0
8 + -7x + -1x2 = 0

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

Subproblem 1

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

Subproblem 2

Set the factor '(8 + x)' equal to zero and attempt to solve: Simplifying 8 + x = 0 Solving 8 + x = 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 + x = 0 + -8 Combine like terms: 8 + -8 = 0 0 + x = 0 + -8 x = 0 + -8 Combine like terms: 0 + -8 = -8 x = -8 Simplifying x = -8

Solution

x = {1, -8}

See similar equations:

| 40-7a=8(-4a+5) | | 3-2m+1=10+2m | | X=by+y | | 6x+5-1=25 | | 5x-1=36 | | 6(n)=5(2n+4) | | t-5=2 | | 10-5p+1+4p=3(p+1)-7(p-5) | | 4(x+3)=4(2x+11) | | x-7-4x=25 | | 7u-13u-5=19 | | 8x^2-4x+12=0 | | (-3,1),(-17,2)= | | -83.4+x=122 | | 2x+5(x-2)-21=4-(2x-10)-2 | | 1d-10=8d | | (2x-10)=(3x-40) | | 7p-p=5p+2 | | 4(3x-2)13x= | | (4x-30)=(2x-14) | | 0=z^4-4z^3+11z^2+14z+10 | | 5x+5=7-1 | | 4[3t+8]=16t | | 14(a-4)=7(6) | | Xsquared-19=0 | | 14-(6w+5)=7w | | -12[9x+1]=144 | | 27-9x=-3y | | 9z-8-3z+2=0 | | r-4=-8*r | | 32=7x+4y | | 4[2(3x-y)-5(2x+1)]= |

Equations solver categories