x^2-3x-4=6

Simple and best practice solution for x^2-3x-4=6 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^2-3x-4=6 equation:


Simplifying
x2 + -3x + -4 = 6

Reorder the terms:
-4 + -3x + x2 = 6

Solving
-4 + -3x + x2 = 6

Solving for variable 'x'.

Reorder the terms:
-4 + -6 + -3x + x2 = 6 + -6

Combine like terms: -4 + -6 = -10
-10 + -3x + x2 = 6 + -6

Combine like terms: 6 + -6 = 0
-10 + -3x + x2 = 0

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

Subproblem 1

Set the factor '(-2 + -1x)' equal to zero and attempt to solve: Simplifying -2 + -1x = 0 Solving -2 + -1x = 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 + -1x = 0 + 2 Combine like terms: -2 + 2 = 0 0 + -1x = 0 + 2 -1x = 0 + 2 Combine like terms: 0 + 2 = 2 -1x = 2 Divide each side by '-1'. x = -2 Simplifying x = -2

Subproblem 2

Set the factor '(5 + -1x)' equal to zero and attempt to solve: Simplifying 5 + -1x = 0 Solving 5 + -1x = 0 Move all terms containing x to the left, all other terms to the right. Add '-5' to each side of the equation. 5 + -5 + -1x = 0 + -5 Combine like terms: 5 + -5 = 0 0 + -1x = 0 + -5 -1x = 0 + -5 Combine like terms: 0 + -5 = -5 -1x = -5 Divide each side by '-1'. x = 5 Simplifying x = 5

Solution

x = {-2, 5}

See similar equations:

| y^2+30y-75=100 | | 2x^2-48x+140=-60 | | k^2+16k+60=5 | | x^2-10x-7=3 | | 4.1x-23=-3.9x-1 | | 6x-36=0 | | -53-2i=i+20 | | 3y^2+6y-240=0 | | 3y^2+6y-240=o | | 3d^2+4d=8 | | r^2-16r-36=0 | | -37-2x=2x+9 | | 45+3x=9x | | 2x-6x+4=12 | | 3n+2(3+-1.5n)+n=n+6 | | n^2-20n+75=0 | | 4t=3G+3 | | 2m^2-12m-2=0 | | -(6y+3)-(-5y-4)=-2 | | 10b^2+200b=-800 | | 0.16(24)+0.04=0.08(24+x) | | 24+5m-2m=7m+4m-64 | | 3x+12x-20=25 | | 4u^2+121=44u | | 3x+2(3+-1.5x)+x=x+6 | | 7x+19=5(x+3) | | -3x+7x=17+11 | | 3s^2+s=2 | | 3x^2-24x=99 | | f^2=16f | | 60-12=20+36 | | n^2=20n-100 |

Equations solver categories