If it's not what You are looking for type in the equation solver your own equation and let us solve it.
-7n(2n-5)=0
We multiply parentheses
-14n^2+35n=0
a = -14; b = 35; c = 0;
Δ = b2-4ac
Δ = 352-4·(-14)·0
Δ = 1225
The delta value is higher than zero, so the equation has two solutions
We use following formulas to calculate our solutions:$n_{1}=\frac{-b-\sqrt{\Delta}}{2a}$$n_{2}=\frac{-b+\sqrt{\Delta}}{2a}$$\sqrt{\Delta}=\sqrt{1225}=35$$n_{1}=\frac{-b-\sqrt{\Delta}}{2a}=\frac{-(35)-35}{2*-14}=\frac{-70}{-28} =2+1/2 $$n_{2}=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-(35)+35}{2*-14}=\frac{0}{-28} =0 $
| 0.4/4=d | | 2.44x+12.2=24.4 | | d+6=9.5 | | (3p+4)/13=1 | | 1/9+1/2a=1/a^2 | | 4.4-2=c | | 2(2+x)=27 | | y=994935935 | | 0.1*3=g | | f(f+8)=0 | | (2k-3)=0 | | 4=-3+u | | 7g(5g-7)=0 | | x=8=2 | | 4m^-6m+1=0 | | d(7d-1)=0 | | 34=x=60 | | z/4=0.2 | | -1+3x-5x=5-x | | -7(w-5)=-5w+17 | | 5x-4(x+7)=0 | | -1=3+x/6 | | 18=-6u+2(u+5) | | (5y)10-4+25=35 | | 9+r=4 | | 4m+3=13m | | p-3/4=3/4 | | N/n+3=2/3 | | F(x)^6=1 | | m+0.2=5.2 | | u-2=2.2 | | y^2-2y-36=0 |