If it's not what You are looking for type in the equation solver your own equation and let us solve it.
6x^2+9x=81
We move all terms to the left:
6x^2+9x-(81)=0
a = 6; b = 9; c = -81;
Δ = b2-4ac
Δ = 92-4·6·(-81)
Δ = 2025
The delta value is higher than zero, so the equation has two solutions
We use following formulas to calculate our solutions:$x_{1}=\frac{-b-\sqrt{\Delta}}{2a}$$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}$$\sqrt{\Delta}=\sqrt{2025}=45$$x_{1}=\frac{-b-\sqrt{\Delta}}{2a}=\frac{-(9)-45}{2*6}=\frac{-54}{12} =-4+1/2 $$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-(9)+45}{2*6}=\frac{36}{12} =3 $
| -3(a+17)=3((a-5) | | 7(k-6)+42=2(4K+5) | | 5(12-x)=45 | | n÷4=1.2 | | 98+31=7x-32 | | -5x-3=-10x+15x-4 | | 2h+3h-4h=13 | | 7u=840 | | n-1-2=-3 | | 35*66=p | | 2x-6+34=180 | | -6(2+x)=12 | | m+90+62=180 | | 15=a4+9 | | 24+65+x=180 | | p+2=-6+p | | 8a-4=22 | | d/7+57=66 | | -5x+34=-2(2x+8) | | 18x-54=4x+12 | | 7/10=k−4/7 | | 6z+2=74 | | (3y-9)+(y+12)=180 | | y=500(1.08)^15 | | 3y-1y=6+4 | | 7.9x–2–3.2x–10-x=2.8 | | 0.75(20h−4)=8h−45 | | r-19.3=-6.2 | | 5u-5u+3u+2u-2u=9 | | a+3=-11-3a+6a | | P=2m+15 | | 22/3x=28/9 |