(a+1)(a-1)-2(a-1)=

Simple and best practice solution for (a+1)(a-1)-2(a-1)= 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+1)(a-1)-2(a-1)= equation:


Simplifying
(a + 1)(a + -1) + -2(a + -1) = 0

Reorder the terms:
(1 + a)(a + -1) + -2(a + -1) = 0

Reorder the terms:
(1 + a)(-1 + a) + -2(a + -1) = 0

Multiply (1 + a) * (-1 + a)
(1(-1 + a) + a(-1 + a)) + -2(a + -1) = 0
((-1 * 1 + a * 1) + a(-1 + a)) + -2(a + -1) = 0
((-1 + 1a) + a(-1 + a)) + -2(a + -1) = 0
(-1 + 1a + (-1 * a + a * a)) + -2(a + -1) = 0
(-1 + 1a + (-1a + a2)) + -2(a + -1) = 0

Combine like terms: 1a + -1a = 0
(-1 + 0 + a2) + -2(a + -1) = 0
(-1 + a2) + -2(a + -1) = 0

Reorder the terms:
-1 + a2 + -2(-1 + a) = 0
-1 + a2 + (-1 * -2 + a * -2) = 0
-1 + a2 + (2 + -2a) = 0

Reorder the terms:
-1 + 2 + -2a + a2 = 0

Combine like terms: -1 + 2 = 1
1 + -2a + a2 = 0

Solving
1 + -2a + a2 = 0

Solving for variable 'a'.

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

Subproblem 1

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

Subproblem 2

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

Solution

a = {1, 1}

See similar equations:

| 81.4=x-37.25 | | -1/2(x-4)=1 | | t^4-4t^2=3 | | (10x^2y^4/45x^7y^-3)^-2 | | 7x+10-4x=24-x | | X^2+42=400 | | S-1/3=5/6 | | 39-3n=6(4n-3) | | a(2+x)-(2+x)= | | f(x+3)=2x-4 | | 10j-9j=15 | | 6v=v+40 | | (a^2+1)-b(a^2+1)= | | 7b-9x+3a-12= | | 3696x-1364=44(84x-31) | | 2x+21=-9 | | x=cos-5/3 | | 7/2y=42-22x | | 5x-3(x-5)=-8+5x+14 | | 53=a^3+b^3+c^3 | | 9x-7i=3(3i-7u) | | 54=a^3+b^3+c^3 | | 29=a^3+b^3+c^3 | | x^3+6x^2-5x-22=0 | | a(a+b)-b(a+b)= | | y=0.7x+0.6 | | 2a^2-a+4=14a-14 | | 7.5n-1.5=-6.5+6.5n | | 3(b+2)-(b-4)=0 | | 9+x=3x+3 | | x^4-x^3-11x^2+29x+78=0 | | 3a+4=14a-14 |

Equations solver categories