5t^2-21t-20=

Simple and best practice solution for 5t^2-21t-20= 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 5t^2-21t-20= equation:


Simplifying
5t2 + -21t + -20 = 0

Reorder the terms:
-20 + -21t + 5t2 = 0

Solving
-20 + -21t + 5t2 = 0

Solving for variable 't'.

Factor a trinomial.
(-4 + -5t)(5 + -1t) = 0

Subproblem 1

Set the factor '(-4 + -5t)' equal to zero and attempt to solve: Simplifying -4 + -5t = 0 Solving -4 + -5t = 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 + -5t = 0 + 4 Combine like terms: -4 + 4 = 0 0 + -5t = 0 + 4 -5t = 0 + 4 Combine like terms: 0 + 4 = 4 -5t = 4 Divide each side by '-5'. t = -0.8 Simplifying t = -0.8

Subproblem 2

Set the factor '(5 + -1t)' equal to zero and attempt to solve: Simplifying 5 + -1t = 0 Solving 5 + -1t = 0 Move all terms containing t to the left, all other terms to the right. Add '-5' to each side of the equation. 5 + -5 + -1t = 0 + -5 Combine like terms: 5 + -5 = 0 0 + -1t = 0 + -5 -1t = 0 + -5 Combine like terms: 0 + -5 = -5 -1t = -5 Divide each side by '-1'. t = 5 Simplifying t = 5

Solution

t = {-0.8, 5}

See similar equations:

| 5a+d-bc= | | 125-3b=22b | | -7x-19=-145 | | 15x+20=-7x-16+20x | | 5+2=3+24 | | 5t^2-16t-45= | | 2x^2+19=37 | | 16ab^2+4a^2b= | | a+2a=57 | | 7n+3=17 | | 45x-34=43+521 | | -9w+4=-10-3w-7w | | 2c+ab-3d= | | -7(2*-1)=35 | | 19x+11y=2 | | 30000=300*0,082*x | | X+(-13)=-5 | | 5(x-2)+5=10 | | 9x+29=12 | | 8(0)-7=3(0)-7+5(0) | | 8(0)-7=3(0) | | 2.x=4 | | -3-7(-3-6v)= | | (d+1)(d-1+6)d=2 | | 1+1y=3 | | t=5k+5v | | -5(a-6)+2a= | | -8(w-4)-(9-3w)=-12w | | 8x^4-3x^3-8=0 | | 2x^2-7.5x+x^2=8.5 | | 24y-(18y-6)-18-(8-2y)=0 | | 6(3)=3((3)+4)(-3) |

Equations solver categories