If it's not what You are looking for type in the equation solver your own equation and let us solve it.
(4m-7)(m-8)=0
We multiply parentheses ..
(+4m^2-32m-7m+56)=0
We get rid of parentheses
4m^2-32m-7m+56=0
We add all the numbers together, and all the variables
4m^2-39m+56=0
a = 4; b = -39; c = +56;
Δ = b2-4ac
Δ = -392-4·4·56
Δ = 625
The delta value is higher than zero, so the equation has two solutions
We use following formulas to calculate our solutions:$m_{1}=\frac{-b-\sqrt{\Delta}}{2a}$$m_{2}=\frac{-b+\sqrt{\Delta}}{2a}$$\sqrt{\Delta}=\sqrt{625}=25$$m_{1}=\frac{-b-\sqrt{\Delta}}{2a}=\frac{-(-39)-25}{2*4}=\frac{14}{8} =1+3/4 $$m_{2}=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-(-39)+25}{2*4}=\frac{64}{8} =8 $
| d+7=-13 | | 2/7n-5=13 | | -11b+7=409 | | 2x+6+6x+8=180 | | 2x-2(x+25)=47 | | -36=3z | | 2x-(2x+50)=47 | | 3(3m-4)=33 | | 7f-f+5=-37 | | 8=-3+f | | 31-3k=-7(2k+5) | | 1-7/12-1/4=x | | 7s=-43 | | (3/5x)+(7/2x)=1 | | 12=k/2/3 | | 56=4s | | -12+m=-2m-16-2 | | 100=-16x^2+64 | | 4/5=k-3/7 | | 2=-16x^2+64 | | -12+m=-2(m+8)-3 | | 16=-16x^2+64 | | -12+m=-2(m+8)-2 | | 15=2(q+4) | | 2(2x+3)-7x=23-5(×+3x) | | 3(x+-5)^2=15 | | -4b+3b=b+14 | | -217=-7b-7(3-8b) | | 4x+2=1/8 | | 3x^2+18x+34=0 | | 3(x+-5)^2+2=17 | | 201.9y=-1615.2 |