Hi,

how do you solve the equation by completing the square. 

z^2+5z-6=0  

First add and subtract 

z^2+5z + 25/4 -25/4 -6 = 0 





    z + 5/2 = ± 7/2

    z =  -5/2 ± 7/2

 z = -6, 1 

RELATED QUESTIONS

solve equation by completing the square... (answered by jim_thompson5910,solver91311)

How do you solve the equation by completing the square, w^2-14w+24=0... (answered by dabanfield)

how do you solve by completing the square if your problem is:   xsq-14x+1=0... (answered by jim_thompson5910)

how do u solve 2x squared-13x+6=0 in completing the... (answered by solver91311)

How do you solve z^2-5z-6=0 using the quadratic... (answered by ewatrrr)

x2-2x=48....i have to solve for x by completing the square..how do you do this?... (answered by solver91311)

HOW DO YOU REWRITE AN EQUATION BY COMPLETING THE SQUARE THEN SOLVE THE EQUATION?  (answered by stanbon)

how do you solve by completing the... (answered by CharlesG2)

solve by completing the square.


x squared  + 11x =... (answered by checkley77)