If it's not what You are looking for type in the equation solver your own equation and let us solve it.
z2-z-56=0
We add all the numbers together, and all the variables
z^2-1z-56=0
a = 1; b = -1; c = -56;
Δ = b2-4ac
Δ = -12-4·1·(-56)
Δ = 225
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{225}=15$$z_{1}=\frac{-b-\sqrt{\Delta}}{2a}=\frac{-(-1)-15}{2*1}=\frac{-14}{2} =-7 $$z_{2}=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-(-1)+15}{2*1}=\frac{16}{2} =8 $
| 6x-12=7x+11 | | 2x+x√2=225 | | t2-3t-40=0 | | 32=x-8+4x | | 32=x8+4x | | 3t-40=0 | | 11x-12=8x+11 | | 11y-14=7y+6 | | P=(2×1)+(2×w) | | 38=y/2 | | 7j-9=2j+36 | | 2/3x+3=x | | 3/(4x^2)-1/(3x)=0 | | 3/(4x*x)-1/(3x)=0 | | 9=8-p/3 | | 5(2y-3)=12y-7 | | 6x+13+3x=4 | | (x+6)^1/2=7 | | 3/(4x*x)-1/3x=0 | | -10=2+5p | | 3/5t+-1/10=t+-5/2 | | 3/(4x^2)-1/3x=0 | | 8-p/2=-3 | | 7x-21/x+2*4x+8/x-3=0 | | 7x-21/(x+2)*(4x+8)/x-3=0 | | 50-3q=14+1,5q | | 7x-21/(x+2)*(4x+8)/(x-3)=0 | | (7x-21)/(x+2)*(4x+8)/(x-3)=0 | | (8+x)0.3=x | | -30n-27n=3n | | (7/x)+5/(x+3)=0 | | 2n+5=18 |