If it's not what You are looking for type in the equation solver your own equation and let us solve it.
7z^2-18z+8=0
a = 7; b = -18; c = +8;
Δ = b2-4ac
Δ = -182-4·7·8
Δ = 100
The delta value is higher than zero, so the equation has two solutions
We use following formulas to calculate our solutions:$z_{1}=\frac{-b-\sqrt{\Delta}}{2a}$$z_{2}=\frac{-b+\sqrt{\Delta}}{2a}$$\sqrt{\Delta}=\sqrt{100}=10$$z_{1}=\frac{-b-\sqrt{\Delta}}{2a}=\frac{-(-18)-10}{2*7}=\frac{8}{14} =4/7 $$z_{2}=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-(-18)+10}{2*7}=\frac{28}{14} =2 $
| 8x-9=4×-9 | | 3p,p=5 | | 2x^2+3x+5=2x^2+6x | | 3z-4=3z-5 | | 9-4(2-y)=7y-3-y | | 6(7x+7)=7(6x+6)= | | -12=x-6+5x | | p^2+191=-8p | | -11/20x=3 | | Y=200x+3 | | 11m-5=28 | | X+4=-x+20 | | 5(×-1)-3x=-15 | | 4+r/5=-1 | | x/4+7=-15 | | 10.6x+94.17=-9.4x+94.13 | | (X-35)+X+(X-46)1/2x=360 | | 169x^2-225=0 | | 120=2(3.14)(r)4 | | 1/3(-5x-3)=14 | | 5/x-7=6x | | x*0.06=212 | | (20y-50)/3=5y | | x^2-76=-12x | | 7x-5/3=3 | | 7-8b=-4b | | 27=3n-3(6-2n) | | (8-2x)(8-2x)x=0 | | Z^2-76=-12z | | 32(x+2)=10(x-1) | | 88=-2n+8(1-n) | | 1/4x+7=26 |