a^2-ab-72b^2=0

Simple and best practice solution for a^2-ab-72b^2=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 a^2-ab-72b^2=0 equation:


Simplifying
a2 + -1ab + -72b2 = 0

Reorder the terms:
-1ab + a2 + -72b2 = 0

Solving
-1ab + a2 + -72b2 = 0

Solving for variable 'a'.

Factor a trinomial.
(a + -9b)(a + 8b) = 0

Subproblem 1

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

Subproblem 2

Set the factor '(a + 8b)' equal to zero and attempt to solve: Simplifying a + 8b = 0 Solving a + 8b = 0 Move all terms containing a to the left, all other terms to the right. Add '-8b' to each side of the equation. a + 8b + -8b = 0 + -8b Combine like terms: 8b + -8b = 0 a + 0 = 0 + -8b a = 0 + -8b Remove the zero: a = -8b Simplifying a = -8b

Solution

a = {9b, -8b}

See similar equations:

| 4n^2-15n-4=0 | | 5v^2+13v=-6 | | 9-5z=24 | | 8c+3d-5(9c-7d)= | | -3p+3=21 | | 3y-7=-22 | | 2(8t^2-8t+1)(1-2t)+8t^2-8t+1+8t^2=0 | | (2x-1)(2x-1)=25 | | (5x-45)(x-9)=30 | | 5(x-9)(x-9)=30 | | 2+-3c=7 | | 5x+1+3x=73 | | 7r^2=70r-175 | | (5y-9)(4+y)=0 | | x^3+3x^2+54=0 | | -2z(z-9)(z+5)=0 | | -8(t-9)-(t+1)=6 | | (20-x)(23-x)=340 | | 2=1x+b | | 42=7+-2b | | 45=7+-2b | | 42=7-2b | | 7x-8=5x+2 | | 8x-6=10x+4 | | 3x+10=5(10) | | 9x+7=6x+5 | | x^2+13x-420=0 | | x*7x= | | 3n+6=90 | | 4=0.3x^2-x-8 | | 2x^2+x=1 | | 0.7x+2(x-3)=0.2+3 |

Equations solver categories