If it's not what You are looking for type in the equation solver your own equation and let us solve it.
9x^2-61x+80=0
a = 9; b = -61; c = +80;
Δ = b2-4ac
Δ = -612-4·9·80
Δ = 841
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{841}=29$$x_{1}=\frac{-b-\sqrt{\Delta}}{2a}=\frac{-(-61)-29}{2*9}=\frac{32}{18} =1+7/9 $$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-(-61)+29}{2*9}=\frac{90}{18} =5 $
| -6(7x-1)+2=-42x+8 | | (3x-7=10x+7) | | X^2-4x+7=21 | | -11+y/15=-11 | | 29-6b=7(-6b-1) | | -8y-2=14 | | 81=11^x | | 2÷5(r-2)=3÷20(r-4) | | 725x=125 | | 2/9t−5/6=1/12t | | -12-8r=4(6r+1) | | -24=(8x/5) | | 9x^2=3-7x | | -24=(8x/5 | | 3a+1/8=2 | | x-28=100 | | 3u+9u-2)=10 | | 2^(x-1)+2^(x+3)=54 | | 9/6-12v=1/4 | | 3x²-65=0 | | -7=3(t-15)-t | | -v/3=18 | | −7x2−5x+1=0 | | 5(2x-5)=6 | | x^2-(4/3)x-5=0 | | 5m-8=12m+6 | | 3/4x-2+1/2x=3/8x+1/4 | | 22x=1 | | 1.2x+4.3=3.1-x | | 5.45(11)+7.33(x)=6.14(11+x) | | 15.5x+55=180 | | 4x^2+61x+204=0 |