3a(a-9)(a+11)=0

Simple and best practice solution for 3a(a-9)(a+11)=0 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 3a(a-9)(a+11)=0 equation:


Simplifying
3a(a + -9)(a + 11) = 0

Reorder the terms:
3a(-9 + a)(a + 11) = 0

Reorder the terms:
3a(-9 + a)(11 + a) = 0

Multiply (-9 + a) * (11 + a)
3a(-9(11 + a) + a(11 + a)) = 0
3a((11 * -9 + a * -9) + a(11 + a)) = 0
3a((-99 + -9a) + a(11 + a)) = 0
3a(-99 + -9a + (11 * a + a * a)) = 0
3a(-99 + -9a + (11a + a2)) = 0

Combine like terms: -9a + 11a = 2a
3a(-99 + 2a + a2) = 0
(-99 * 3a + 2a * 3a + a2 * 3a) = 0
(-297a + 6a2 + 3a3) = 0

Solving
-297a + 6a2 + 3a3 = 0

Solving for variable 'a'.

Factor out the Greatest Common Factor (GCF), '3a'.
3a(-99 + 2a + a2) = 0

Factor a trinomial.
3a((-11 + -1a)(9 + -1a)) = 0

Ignore the factor 3.

Subproblem 1

Set the factor 'a' equal to zero and attempt to solve: Simplifying a = 0 Solving a = 0 Move all terms containing a to the left, all other terms to the right. Simplifying a = 0

Subproblem 2

Set the factor '(-11 + -1a)' equal to zero and attempt to solve: Simplifying -11 + -1a = 0 Solving -11 + -1a = 0 Move all terms containing a to the left, all other terms to the right. Add '11' to each side of the equation. -11 + 11 + -1a = 0 + 11 Combine like terms: -11 + 11 = 0 0 + -1a = 0 + 11 -1a = 0 + 11 Combine like terms: 0 + 11 = 11 -1a = 11 Divide each side by '-1'. a = -11 Simplifying a = -11

Subproblem 3

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 = {0, -11, 9}

See similar equations:

| 10y=12x-8 | | 5x+4x-4=6x+2-3x | | 5t(10)-2=6t-9 | | 0=x^3+-27 | | 0=-27+x^3 | | (x*.0825)+x=8 | | x+(.5+2.5)=106 | | 4x^2-63-4x=0 | | x^2-2=34 | | 3x=139 | | y=-4x+26 | | cos*3*x+cos*x=0 | | 23=w+3w-5 | | 4(b-7)= | | 5x^2+x-13=0 | | 2x^2+5=77 | | sin*2*x-cox*x=0 | | 9n-17=64 | | sin*4*x-sin*2*x=sin*x | | 4u^2+21u=-5 | | 120=w+76+w | | 3x+74775=754x | | 182-5x=31x+18 | | 5x+8=-14+3x | | 9=3-X | | 4x^2+4x-9=0 | | n-15=21 | | 2m+7=7m+35 | | 4w+9x-11y+6w+3x+2y= | | 10=4x-2 | | 3(4x+2)=7 | | 21x+1=18x+14 |

Equations solver categories