7t^2-5t-2=0

Simple and best practice solution for 7t^2-5t-2=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 7t^2-5t-2=0 equation: 



7t^2-5t-2=0

a = 7; b = -5; c = -2;
Δ = b2-4ac
Δ = -52-4·7·(-2)
Δ = 81
The delta value is higher than zero, so the equation has two solutions
We use following formulas to calculate our solutions:
$t_{1}=\frac{-b-\sqrt{\Delta}}{2a}$
$t_{2}=\frac{-b+\sqrt{\Delta}}{2a}$

$\sqrt{\Delta}=\sqrt{81}=9$


$t_{1}=\frac{-b-\sqrt{\Delta}}{2a}=\frac{-(-5)-9}{2*7}=\frac{-4}{14}
=-2/7
$


$t_{2}=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-(-5)+9}{2*7}=\frac{14}{14}
=1
$

See similar equations:

| 0.5(m+4)=3(m-1)) | | .67y+3=29 | | x1=-7x2=5 | | 15y+42=162 | | x=6=2(x+14) | | 7x+69=10x | | m.P=7.3 | | 6-8x=6x-10-10 | | 5(-2+5)+x-5=-43 | | 4x2-20x+30=9 | | x*2-4=6 | | C(x)=50.00-0.10(30) | | 5x2+9x=0 | | (X+1)(x+2)(x+3)(x+4)=720 | | 6-7x=7x-10-22 | | 7/5y-12=-5 | | x/23=71 | | 4=0.75m-7 | | 7p=4p−6 | | -129+x=33-8x | | 5x+3(x+5)=-2(3x-4)-7 | | 3(z+3)=32 | | 30(x)=50.00-0.10x | | −3n−5=25 | | 6(2n+5)=55 | | f/3+2=12 | | 6x-(24x^-2)=0 | | 2.7x-4=1.5+2 | | -5(4x-2)+1=-151 | | x/8=25/48 | | 6x-24x^-2=0 | | 36-4=4x |

Equations solver categories