If it's not what You are looking for type in the equation solver your own equation and let us solve it.
7v(-6-2v)=12
We move all terms to the left:
7v(-6-2v)-(12)=0
We add all the numbers together, and all the variables
7v(-2v-6)-12=0
We multiply parentheses
-14v^2-42v-12=0
a = -14; b = -42; c = -12;
Δ = b2-4ac
Δ = -422-4·(-14)·(-12)
Δ = 1092
The delta value is higher than zero, so the equation has two solutions
We use following formulas to calculate our solutions:$v_{1}=\frac{-b-\sqrt{\Delta}}{2a}$$v_{2}=\frac{-b+\sqrt{\Delta}}{2a}$
The end solution:
$\sqrt{\Delta}=\sqrt{1092}=\sqrt{4*273}=\sqrt{4}*\sqrt{273}=2\sqrt{273}$$v_{1}=\frac{-b-\sqrt{\Delta}}{2a}=\frac{-(-42)-2\sqrt{273}}{2*-14}=\frac{42-2\sqrt{273}}{-28} $$v_{2}=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-(-42)+2\sqrt{273}}{2*-14}=\frac{42+2\sqrt{273}}{-28} $
| 3(4x-1)=12x+3 | | -4(x-5)+12=-24 | | -25=k-7 | | 60=1/2(20+20)h | | (y-7)^2=2y^2-19y+43 | | X+1/x-1=2x+3/2x-5 | | 5d+20=56-4d | | (y-7)^2=2y^2-19+43 | | 3x÷9=45 | | 4x+3x=65 | | 120=5(x-75)+70 | | 3n×9=45 | | 12=0.30n | | 32.3x-32.1=32.8 | | 4+6p-2p=17 | | 4/9b=5+1/3 | | 3x–7=20 | | 4/9b=51/3 | | 5x^2-x-32=0 | | 4a/6+2=7 | | 2x-8=-6x+4/2 | | 8(2/3+1/3)=x | | 4a.6+2=7 | | 2x+1=21 | | 27=x-9x+9 | | –6x=–30 | | 6+m3=18 | | 56x+9x^2+100=100 | | 4y=–24 | | 2x+1=21/ | | 9^y+6=8 | | 3(m+4)+2(m-7)=5(m+2) |