a^2+8a=-7

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


Simplifying
a2 + 8a = -7

Reorder the terms:
8a + a2 = -7

Solving
8a + a2 = -7

Solving for variable 'a'.

Reorder the terms:
7 + 8a + a2 = -7 + 7

Combine like terms: -7 + 7 = 0
7 + 8a + a2 = 0

Factor a trinomial.
(7 + a)(1 + a) = 0

Subproblem 1

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

Subproblem 2

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

Solution

a = {-7, -1}

See similar equations:

| a^3+8a=-7 | | x=4/5--8 | | 2.5m+7.6=1.5m | | -30=6g | | f(3)=-3+5 | | 0.16b=3 | | (n-12)2=n+16 | | 4x+8+8x+17=7x+35 | | x^2+x-4=6 | | x^2+x-4=1 | | 1/2(x)=6x+2 | | M^2+4m+3= | | (1/2)(x)=-6x+2 | | f(x)=x^4-4x^3+14x^2+6x-23 | | 3x+12y=2754 | | (4x+9)(x-7)=8x+18 | | 5x-20=35x-74 | | 2(16x+14y)= | | 30(2x-2y)= | | 5x=35x-74 | | 4(5x+7y+3x)= | | -11q=-231 | | a/5=-21 | | 4(8x+7y)= | | 5h+20=2(h+10)+3h | | 3(2m-4)=6m+7 | | -7a=-98 | | 4y=-200 | | x+45=500 | | b^2+567=0 | | 4u=-136 | | 3(2+2)= |

Equations solver categories