If it's not what You are looking for type in the equation solver your own equation and let us solve it.
5x^2-20x+7.2=0
a = 5; b = -20; c = +7.2;
Δ = b2-4ac
Δ = -202-4·5·7.2
Δ = 256
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{256}=16$$x_{1}=\frac{-b-\sqrt{\Delta}}{2a}=\frac{-(-20)-16}{2*5}=\frac{4}{10} =2/5 $$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-(-20)+16}{2*5}=\frac{36}{10} =3+3/5 $
| 12^x-5=2x | | 45=15z-15 | | 40=50+2t–0.0625t^2 | | 5(x-5)=3(x+11) | | -7.2x+8.3=1.3 | | -8x+8(4x-5)=-112 | | 4(x+8)=2(x+25) | | 3(-3+k)=-12 | | 7y+6y=-10 | | y^2+8y+16=-5 | | 6-10m=186 | | (m+3)(m-4)=0 | | 19+u+10u=13u-13 | | 2(4b-5)=34 | | 1/4(12x-8)+11=11 | | 18n+12=19n | | (b+3+(b)=26 | | 18/x=6/13 | | 2/3(9x-15)+2x=-4 | | -5x+12=30 | | 75=-5p-5 | | 4x+35=15 | | -18-9k=-2k+17 | | -2c-6=5c+6+9 | | -1-d=4-6d | | -10-8q=7+3-6q | | 1/2(8x-6)+9=8 | | 2+3x=-8+8x | | x-8/3=+x-3/2 | | -4x+7=40 | | -5z+10=-10-7z | | 2h=2+3h |