x^2+5=(2x+1)(x-1)

Simple and best practice solution for x^2+5=(2x+1)(x-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 x^2+5=(2x+1)(x-1) equation:


Simplifying
x2 + 5 = (2x + 1)(x + -1)

Reorder the terms:
5 + x2 = (2x + 1)(x + -1)

Reorder the terms:
5 + x2 = (1 + 2x)(x + -1)

Reorder the terms:
5 + x2 = (1 + 2x)(-1 + x)

Multiply (1 + 2x) * (-1 + x)
5 + x2 = (1(-1 + x) + 2x * (-1 + x))
5 + x2 = ((-1 * 1 + x * 1) + 2x * (-1 + x))
5 + x2 = ((-1 + 1x) + 2x * (-1 + x))
5 + x2 = (-1 + 1x + (-1 * 2x + x * 2x))
5 + x2 = (-1 + 1x + (-2x + 2x2))

Combine like terms: 1x + -2x = -1x
5 + x2 = (-1 + -1x + 2x2)

Solving
5 + x2 = -1 + -1x + 2x2

Solving for variable 'x'.

Reorder the terms:
5 + 1 + x + x2 + -2x2 = -1 + -1x + 2x2 + 1 + x + -2x2

Combine like terms: 5 + 1 = 6
6 + x + x2 + -2x2 = -1 + -1x + 2x2 + 1 + x + -2x2

Combine like terms: x2 + -2x2 = -1x2
6 + x + -1x2 = -1 + -1x + 2x2 + 1 + x + -2x2

Reorder the terms:
6 + x + -1x2 = -1 + 1 + -1x + x + 2x2 + -2x2

Combine like terms: -1 + 1 = 0
6 + x + -1x2 = 0 + -1x + x + 2x2 + -2x2
6 + x + -1x2 = -1x + x + 2x2 + -2x2

Combine like terms: -1x + x = 0
6 + x + -1x2 = 0 + 2x2 + -2x2
6 + x + -1x2 = 2x2 + -2x2

Combine like terms: 2x2 + -2x2 = 0
6 + x + -1x2 = 0

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

Subproblem 1

Set the factor '(3 + -1x)' equal to zero and attempt to solve: Simplifying 3 + -1x = 0 Solving 3 + -1x = 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 + -1x = 0 + -3 Combine like terms: 3 + -3 = 0 0 + -1x = 0 + -3 -1x = 0 + -3 Combine like terms: 0 + -3 = -3 -1x = -3 Divide each side by '-1'. x = 3 Simplifying x = 3

Subproblem 2

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

Solution

x = {3, -2}

See similar equations:

| 480+2y+18=5(101-y) | | 5(7x-5)= | | y^2-y-21=2y-3 | | 9(x+3)=10x-114 | | 4a+7ab-a+5ab= | | -2x^2+4000x-800000=0 | | 7x-8=2x-3 | | 3(5x+2)/2=33 | | 15+2=7d+10 | | 2x-8=27 | | 3(x-6)=-17.1 | | 2(x+3)=22.2 | | 2x-7=-1.8 | | 8x-3=9.8 | | 7-6=2x | | (3^-7/3^-10)*3^-5+5 | | 3lnx=0 | | 15x+10y=-30 | | 39+u=85 | | 6r-7=29 | | 5a+5=3a+19 | | 2j-10=-16 | | 2^5x3^4/2^7x3^2 | | y-10=-2 | | y+5=-3 | | [-30(-7)]-[210(-3)]= | | (-2)(3)(-5)= | | x^2=4/8 | | 81/-9 | | -54/-6 | | -72+-24= | | x^2-9/16 |

Equations solver categories