-a^2+12a-27=

Simple and best practice solution for -a^2+12a-27= 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+12a-27= equation:


Simplifying
-1a2 + 12a + -27 = 0

Reorder the terms:
-27 + 12a + -1a2 = 0

Solving
-27 + 12a + -1a2 = 0

Solving for variable 'a'.

Factor a trinomial.
(-9 + a)(3 + -1a) = 0

Subproblem 1

Set the factor '(-9 + a)' equal to zero and attempt to solve: Simplifying -9 + a = 0 Solving -9 + a = 0 Move all terms containing a to the left, all other terms to the right. Add '9' to each side of the equation. -9 + 9 + a = 0 + 9 Combine like terms: -9 + 9 = 0 0 + a = 0 + 9 a = 0 + 9 Combine like terms: 0 + 9 = 9 a = 9 Simplifying a = 9

Subproblem 2

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

Solution

a = {9, 3}

See similar equations:

| 4(X+6)=23 | | 12-5u=(-48) | | 6w+11/2=7 | | 0.2(5-2r)=0.3(1-r) | | 5w^2-3w-17=0 | | (-27)+20w=73 | | 6w=11/2 | | 5w^2=17 | | 3x^4+18x^3-12x^2-72x=0 | | 3(X-5)=X-20 | | k^2+4x-71=0 | | 15=b-50 | | v^2+4x-71=0 | | 4x^2-31x-8=9 | | 11.3l-10.1l+7=13.24 | | 7X^2-2X-9=0 | | 23-x+8=6 | | 8.12=-1.5f-8.12-f | | -2(X-5)=7 | | X-1.3=4.2 | | x=x^2-18x-4 | | 5.3c-3c+15=16.84 | | k-10=81 | | (x-2.3)(x-2.3)=25 | | 16r^2-8r+1= | | k^2+4x-77=0 | | (X+2)(X-1)=0 | | 0.7n+0.2n+0.8=-2.8 | | 7x^2=-10x-3 | | 2x^2-3x-2= | | 33x=-231 | | .66666667a+2=.33333333(4a+1) |

Equations solver categories