t^2-2t-8=0

Simple and best practice solution for t^2-2t-8=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 t^2-2t-8=0 equation:


Simplifying
t2 + -2t + -8 = 0

Reorder the terms:
-8 + -2t + t2 = 0

Solving
-8 + -2t + t2 = 0

Solving for variable 't'.

Factor a trinomial.
(-2 + -1t)(4 + -1t) = 0

Subproblem 1

Set the factor '(-2 + -1t)' equal to zero and attempt to solve: Simplifying -2 + -1t = 0 Solving -2 + -1t = 0 Move all terms containing t to the left, all other terms to the right. Add '2' to each side of the equation. -2 + 2 + -1t = 0 + 2 Combine like terms: -2 + 2 = 0 0 + -1t = 0 + 2 -1t = 0 + 2 Combine like terms: 0 + 2 = 2 -1t = 2 Divide each side by '-1'. t = -2 Simplifying t = -2

Subproblem 2

Set the factor '(4 + -1t)' equal to zero and attempt to solve: Simplifying 4 + -1t = 0 Solving 4 + -1t = 0 Move all terms containing t to the left, all other terms to the right. Add '-4' to each side of the equation. 4 + -4 + -1t = 0 + -4 Combine like terms: 4 + -4 = 0 0 + -1t = 0 + -4 -1t = 0 + -4 Combine like terms: 0 + -4 = -4 -1t = -4 Divide each side by '-1'. t = 4 Simplifying t = 4

Solution

t = {-2, 4}

See similar equations:

| 56=9x+3 | | 5x(8x-6)= | | 5+4a=a-3 | | 54=9a+3 | | -6y^2+3y+9=0 | | 5y-2(4-1y)=3y+1-2(2y-4)-1 | | 2X^2+20x=2X-20 | | 12=5-6n+11 | | 34-y=30 | | (x+7)*3=31 | | 5(x+6)+10=100 | | 3a^2+ab^2-5ab= | | y+2=24 | | -9x+5=-10x-2 | | 0.75(1.2W-1.6)=0.8(W+2) | | 4x+3+4=10 | | 52+y=71 | | 4x+3+7+12x=138 | | 9+y=30 | | 2x^6-17x^3+35= | | 23+q=34 | | log(x)+log(4x)=6 | | 8x^2-7x-8=0 | | -205=-5(5r+6) | | n+32=39 | | -24=24 | | -24=8/3 | | (10x-2)=(5x+8) | | 3.6x=-3.96 | | 8x^2-7x-9=0 | | x+7=x^2+10x+25 | | 3.6x=3.96 |

Equations solver categories