(x+1)(x-1)-3(x+2)=-7

Simple and best practice solution for (x+1)(x-1)-3(x+2)=-7 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 (x+1)(x-1)-3(x+2)=-7 equation: 


Simplifying
(x + 1)(x + -1) + -3(x + 2) = -7

Reorder the terms:
(1 + x)(x + -1) + -3(x + 2) = -7

Reorder the terms:
(1 + x)(-1 + x) + -3(x + 2) = -7

Multiply (1 + x) * (-1 + x)
(1(-1 + x) + x(-1 + x)) + -3(x + 2) = -7
((-1 * 1 + x * 1) + x(-1 + x)) + -3(x + 2) = -7
((-1 + 1x) + x(-1 + x)) + -3(x + 2) = -7
(-1 + 1x + (-1 * x + x * x)) + -3(x + 2) = -7
(-1 + 1x + (-1x + x2)) + -3(x + 2) = -7

Combine like terms: 1x + -1x = 0
(-1 + 0 + x2) + -3(x + 2) = -7
(-1 + x2) + -3(x + 2) = -7

Reorder the terms:
-1 + x2 + -3(2 + x) = -7
-1 + x2 + (2 * -3 + x * -3) = -7
-1 + x2 + (-6 + -3x) = -7

Reorder the terms:
-1 + -6 + -3x + x2 = -7

Combine like terms: -1 + -6 = -7
-7 + -3x + x2 = -7

Add '7' to each side of the equation.
-7 + -3x + 7 + x2 = -7 + 7

Reorder the terms:
-7 + 7 + -3x + x2 = -7 + 7

Combine like terms: -7 + 7 = 0
0 + -3x + x2 = -7 + 7
-3x + x2 = -7 + 7

Combine like terms: -7 + 7 = 0
-3x + x2 = 0

Solving
-3x + x2 = 0

Solving for variable 'x'.

Factor out the Greatest Common Factor (GCF), 'x'.
x(-3 + x) = 0


Subproblem 1
Set the factor 'x' equal to zero and attempt to solve:

Simplifying
x = 0

Solving
x = 0

Move all terms containing x to the left, all other terms to the right.

Simplifying
x = 0

Subproblem 2
Set the factor '(-3 + x)' equal to zero and attempt to solve:

Simplifying
-3 + x = 0

Solving
-3 + x = 0

Move all terms containing x to the left, all other terms to the right.

Add '3' to each side of the equation.
-3 + 3 + x = 0 + 3

Combine like terms: -3 + 3 = 0
0 + x = 0 + 3
x = 0 + 3

Combine like terms: 0 + 3 = 3
x = 3

Simplifying
x = 3
Solution
x = {0, 3}

See similar equations:

| .3x=.75x | | log(x)=2.283 | | 7=-3c+14 | | 8log(x)=14 | | -4(2x+5)=-35-12x+4 | | Y-4+2y=8+9y-36 | | -240x^3+223x+6=0 | | 2.5(x-3)=0 | | 4/3x-6=12-5/3x | | -13=8-2(-3) | | 3(2x-6)[(x-(3x-8)+2)-1]=2-(3-2x) | | 2(4z-2x+y)-4(5z+x)= | | y=6x^5-5x^4-30x^3+11x | | 9/6=3/4x | | 7/9-(7/12:7/9) | | 41x-2=x^2+41x-38 | | 8x-2sin(2x)=0 | | .5(x+8)+1.25X=10x | | 2=v/7-5 | | 5=-9+x/4 | | .5(x+8)+1.25=10x | | -2B-6A=0 | | 7(y-2)=-28 | | .5(x+8)+1.25=10 | | 21x/x=6/11 | | 5/8p=15/8 | | 7p^2-34+24=0 | | 2n^2=4-2n | | 2x^2=-2x+24 | | -2x+4x=-6+14x | | 2b^2=-5b+3 | | .4(x+7)=.2(x+4) |

Equations solver categories