If it's not what You are looking for type in the equation solver your own equation and let us solve it.
-7k(k+5)=0
We multiply parentheses
-7k^2-35k=0
a = -7; b = -35; c = 0;
Δ = b2-4ac
Δ = -352-4·(-7)·0
Δ = 1225
The delta value is higher than zero, so the equation has two solutions
We use following formulas to calculate our solutions:$k_{1}=\frac{-b-\sqrt{\Delta}}{2a}$$k_{2}=\frac{-b+\sqrt{\Delta}}{2a}$$\sqrt{\Delta}=\sqrt{1225}=35$$k_{1}=\frac{-b-\sqrt{\Delta}}{2a}=\frac{-(-35)-35}{2*-7}=\frac{0}{-14} =0 $$k_{2}=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-(-35)+35}{2*-7}=\frac{70}{-14} =-5 $
| 6m–4m+2=8 | | (3n–9)(n+7)=0. | | 2×10^5-y+9=87 | | 3x+20=7x-60 | | 3x+20=7x-80 | | 7^2x=30 | | r+11+11+8r=29 | | m/2+4=17 | | 4a–8=24 | | 3x+20=7x-45 | | (k–9)4=9k+44 | | -2x=106 | | 4x÷5=2x÷3 | | -15m=-6-12m | | 3x+20=7x-50 | | 3x+25=7x-40 | | 7x–8–2x=42 | | 3+1+1x7=35 | | 3/4b+1/2=1/2b+3/4 | | 7s=6+10s | | 7x+2x=39 | | 9v−8v=14 | | 4^(3p)=10 | | 3c+4c=14 | | 11+x=94 | | 4j+26=50=6j | | ➢3c+4c=14 | | 11t−10t=19 | | 8x+10=7x+60 | | -20.6=(u/6)-1.4 | | 100n/4=25n | | -10-6p=5-3p |