If it's not what You are looking for type in the equation solver your own equation and let us solve it.
5a(2a+7)=0
We multiply parentheses
10a^2+35a=0
a = 10; b = 35; c = 0;
Δ = b2-4ac
Δ = 352-4·10·0
Δ = 1225
The delta value is higher than zero, so the equation has two solutions
We use following formulas to calculate our solutions:$a_{1}=\frac{-b-\sqrt{\Delta}}{2a}$$a_{2}=\frac{-b+\sqrt{\Delta}}{2a}$$\sqrt{\Delta}=\sqrt{1225}=35$$a_{1}=\frac{-b-\sqrt{\Delta}}{2a}=\frac{-(35)-35}{2*10}=\frac{-70}{20} =-3+1/2 $$a_{2}=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-(35)+35}{2*10}=\frac{0}{20} =0 $
| 2(9x-5)=3(x+16) | | 8(p-1)-2(p-5)=p-5 | | 5.6x=12 | | 17b-7b=b+18 | | 5a+7=2a+4 | | 4.9t^2-42.63t-12.5=0 | | -100-20=k | | 0=(-10)x1 | | 0=-10x1 | | 2x-4=5-6x | | 12x^2-75x-14=0 | | 4x^2-25x-42=0 | | 1/3(10-2x)=1/3(8-2x) | | 85848477(x+6859958)=+748484884847 | | 78(x+9606)=x+75855 | | 8(x+9)=x+694 | | 2/3x+1=4x+3/5 | | x+10+x+15+2x+15=90 | | f(-2)=22 | | 9=y+1/5y | | A=5a-44 | | y+9y=100 | | 3(a+5)=-a(a-2) | | 11x+3x=7x-5 | | -53=-x/6 | | 15=276/x | | 15=-276/x | | 2a+3+a=5 | | 5n2+13n+6=0 | | 3.2x=38.2 | | 5(x-2)+3(x+1)=20 | | 2.4(3y+2)+.3(y+4)=6.6 |