t^2-7t-18=0

Simple and best practice solution for t^2-7t-18=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^2-7t-18=0 equation:


Simplifying
t2 + -7t + -18 = 0

Reorder the terms:
-18 + -7t + t2 = 0

Solving
-18 + -7t + t2 = 0

Solving for variable 't'.

Factor a trinomial.
(-2 + -1t)(9 + -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 '(9 + -1t)' equal to zero and attempt to solve: Simplifying 9 + -1t = 0 Solving 9 + -1t = 0 Move all terms containing t to the left, all other terms to the right. Add '-9' to each side of the equation. 9 + -9 + -1t = 0 + -9 Combine like terms: 9 + -9 = 0 0 + -1t = 0 + -9 -1t = 0 + -9 Combine like terms: 0 + -9 = -9 -1t = -9 Divide each side by '-1'. t = 9 Simplifying t = 9

Solution

t = {-2, 9}

See similar equations:

| -18y=5y-40 | | 10x-5=3x+2 | | x+5.7=8.2 | | 5(7x-1)=20 | | y+3*-6=40-5*y | | 3x+8y= | | .05(2q)+.25q+15.30=74.80 | | 2.5(3b-4)=3.5b-6b | | 1.5(3b-4)=3.5b-6b | | 3(4-2x)=4+2(4-3x) | | p-19=55 | | y=-1/4(2)+3 | | -4f+4=13 | | 6y-7=3+y | | 20=.2(t)+32 | | -6*y+3=5y-40 | | 35=.2(t)+32 | | 4x+6=3x+9 | | 3x-9=36 | | l=.2(0)+32 | | u+3.5=5 | | 0.7(x+9)=21 | | 115-2x=16x+21 | | 5+8p=50 | | -5n-10=10 | | 8a-6(a-8)+3(b-8)= | | -5-10=10 | | 3x+6+8x+7=45 | | 13-9x=35-23x | | 1+9n=9+6n | | 85=9x-5 | | 3x+6+8x+7=90 |

Equations solver categories