9a^2-30=3a

Simple and best practice solution for 9a^2-30=3a 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 9a^2-30=3a equation:


Simplifying
9a2 + -30 = 3a

Reorder the terms:
-30 + 9a2 = 3a

Solving
-30 + 9a2 = 3a

Solving for variable 'a'.

Reorder the terms:
-30 + -3a + 9a2 = 3a + -3a

Combine like terms: 3a + -3a = 0
-30 + -3a + 9a2 = 0

Factor out the Greatest Common Factor (GCF), '3'.
3(-10 + -1a + 3a2) = 0

Factor a trinomial.
3((-5 + -3a)(2 + -1a)) = 0

Ignore the factor 3.

Subproblem 1

Set the factor '(-5 + -3a)' equal to zero and attempt to solve: Simplifying -5 + -3a = 0 Solving -5 + -3a = 0 Move all terms containing a to the left, all other terms to the right. Add '5' to each side of the equation. -5 + 5 + -3a = 0 + 5 Combine like terms: -5 + 5 = 0 0 + -3a = 0 + 5 -3a = 0 + 5 Combine like terms: 0 + 5 = 5 -3a = 5 Divide each side by '-3'. a = -1.666666667 Simplifying a = -1.666666667

Subproblem 2

Set the factor '(2 + -1a)' equal to zero and attempt to solve: Simplifying 2 + -1a = 0 Solving 2 + -1a = 0 Move all terms containing a to the left, all other terms to the right. Add '-2' to each side of the equation. 2 + -2 + -1a = 0 + -2 Combine like terms: 2 + -2 = 0 0 + -1a = 0 + -2 -1a = 0 + -2 Combine like terms: 0 + -2 = -2 -1a = -2 Divide each side by '-1'. a = 2 Simplifying a = 2

Solution

a = {-1.666666667, 2}

See similar equations:

| -6x-8=-38 | | -5(z+3)+3z= | | 8-4x=-32 | | 9a^2=3a | | 4x^2+x-105=0 | | -2+7x=-58 | | 16b^2-64=0 | | -4x-3=41 | | y^2-y=12 | | 3x-6=4x+2 | | 5t^2+14t+8=0 | | 7-2x=27 | | 4t^2+13t+9=0 | | -5+4x=15 | | q(p)=20p+500 | | d^2+6d+8=0 | | 2x+6x=180 | | 4x^2+x-195=0 | | 5(w+5)-8w=10 | | 4(n-2)=2(n+3) | | -6x-9=-9 | | 8xy^4+6x^2-27y^7=0 | | 2x+17y=-29 | | 15x+(11x+20)=180 | | 3(3x+1)+4(x-2)= | | 3(n+5)=n+2 | | -8+x=-6 | | 2(n+5)+3n=20 | | 6x-7=x+23 | | 2e^2x-6=27 | | X=x^5+3x^4-9x-27 | | x^2-3g-54=0 |

Equations solver categories