a^2-18a+81=

Simple and best practice solution for a^2-18a+81= 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^2-18a+81= equation:


Simplifying
a2 + -18a + 81 = 0

Reorder the terms:
81 + -18a + a2 = 0

Solving
81 + -18a + a2 = 0

Solving for variable 'a'.

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

Subproblem 1

Set the factor '(9 + -1a)' equal to zero and attempt to solve: Simplifying 9 + -1a = 0 Solving 9 + -1a = 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 + -1a = 0 + -9 Combine like terms: 9 + -9 = 0 0 + -1a = 0 + -9 -1a = 0 + -9 Combine like terms: 0 + -9 = -9 -1a = -9 Divide each side by '-1'. a = 9 Simplifying a = 9

Subproblem 2

Set the factor '(9 + -1a)' equal to zero and attempt to solve: Simplifying 9 + -1a = 0 Solving 9 + -1a = 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 + -1a = 0 + -9 Combine like terms: 9 + -9 = 0 0 + -1a = 0 + -9 -1a = 0 + -9 Combine like terms: 0 + -9 = -9 -1a = -9 Divide each side by '-1'. a = 9 Simplifying a = 9

Solution

a = {9, 9}

See similar equations:

| 6y+1/5=7y+7/5 | | 53=86/z | | (1+x)3-x=17 | | V+(v-32.6)+(v+23.8)=188.0 | | 13/6x=39 | | 110x-x^2-1000=0 | | -3(2x+2)=12 | | 5(x+4)+4=19 | | C(x)=8x+15 | | -2(3x+2)= | | C(x)=8+15 | | R(x)=52x-0.3x^2 | | (x+3)6=10x | | 3(x-2)-x=0 | | x+12=62 | | 1(x-3)=-4 | | -2x+2(2)=14 | | 1/98x^2+150 | | x^2=8x-6 | | 3x-1/5=x+3/3 | | 7x+3=2-(4x-9) | | 13x=195 | | Xg+HY=J | | x-2=14+6 | | 2(x-1)-2=-4 | | 7-y+.3y=.6(7-y+y) | | 2x+3x-5=x-25 | | 0=x^2+11x-49 | | p(x)=0.3x^2+44x-30 | | =3(100)-400+75 | | (20-3x)/x=2 | | x+.3y=.6(x+y) |

Equations solver categories