9t2+5t-1=0

Simple and best practice solution for 9t2+5t-1=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 9t2+5t-1=0 equation: 



9t^2+5t-1=0

a = 9; b = 5; c = -1;
Δ = b2-4ac
Δ = 52-4·9·(-1)
Δ = 61
The delta value is higher than zero, so the equation has two solutions
We use following formulas to calculate our solutions:
$t_{1}=\frac{-b-\sqrt{\Delta}}{2a}$
$t_{2}=\frac{-b+\sqrt{\Delta}}{2a}$

$t_{1}=\frac{-b-\sqrt{\Delta}}{2a}=\frac{-(5)-\sqrt{61}}{2*9}=\frac{-5-\sqrt{61}}{18}
$


$t_{2}=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-(5)+\sqrt{61}}{2*9}=\frac{-5+\sqrt{61}}{18}
$

See similar equations:

| -110=-2(7+8b) | | 7x2+6x-2=0 | | 2y÷3+1=6 | | -5r-3(5-8r)=-110 | | 7w2+3w-7=0 | | 8x2+8x+2=0 | | X^2-17x+15=-6x-3 | | -8(8x-4)=-96 | | -195=-6+7(3x-3) | | 17-2x=3+5x | | 5x+6x-4=3x-6-10 | | 5u2+5u-1=0 | | 2v+17=43 | | -3x=-2x-6 | | -8j=-10−7j | | 5u2+5u–1=0 | | 6z=10+7z | | 5+8(-a-4)=-91 | | 9u2-6u+4=0 | | -87=-7+8(6+2r) | | 1,5x+18=19,5 | | 7n^2+42n+35=0 | | -87=5(-2n-3)-2 | | 11x-30=8x+12 | | 34-6k=-9(8k-7) | | -2(1-6k)=82 | | X^2+5x-28=8 | | 4y-2y=13 | | X2+5x-28=8 | | x^2+100x+10000=0 | | 3p=128 | | 4n−2n+4=−1+17 |

Equations solver categories