If it's not what You are looking for type in the equation solver your own equation and let us solve it.
3r^2-16r-12=0
a = 3; b = -16; c = -12;
Δ = b2-4ac
Δ = -162-4·3·(-12)
Δ = 400
The delta value is higher than zero, so the equation has two solutions
We use following formulas to calculate our solutions:$r_{1}=\frac{-b-\sqrt{\Delta}}{2a}$$r_{2}=\frac{-b+\sqrt{\Delta}}{2a}$$\sqrt{\Delta}=\sqrt{400}=20$$r_{1}=\frac{-b-\sqrt{\Delta}}{2a}=\frac{-(-16)-20}{2*3}=\frac{-4}{6} =-2/3 $$r_{2}=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-(-16)+20}{2*3}=\frac{36}{6} =6 $
| 7(y-1)=-2y-16 | | x/4+6=30 | | 6y-24=30 | | -10(s+5)=-87 | | 4+2=-x+7 | | (4g-11)(g-7)=0 | | -34x=34 | | y-45=15 | | 5(2b+2)=30 | | 3r2-75=0 | | x+29=29 | | 18=x+7+x | | 38(20)=2.15(20)^2/64.4x | | 2/5=y/28 | | 4.2r=350.2 | | 9.00x+25.00=6.00x+40 | | 2z+6=3z=1 | | 14x+15=6x+47 | | 9.00h+25.00=6.00h+$40 | | (w+8)/(-3)=-9 | | 7+4b=63 | | (6x+24)+x=180 | | $9.00h+$25.00=$6.00h+$40 | | 2/5=28/y | | $2/2.91=x/3 | | 11x-27=4x+43 | | y-5/3=9 | | 12x+20=107 | | 7-3r=2r-4(2-r) | | -4–x=-7 | | 6.00x+28=100 | | 6x+3=32 |