Z^2 - 6z - 27 = 0 you need to factor out firts then solve for z
(z+3 )(z-9) = 0
z+ 3 = 0
z = -3
z-9= 0
z = 9
Answer:
x=13+√-13 or x=13-√-13
Step-by-step explanation:
Using the method of completing the square roots:
x²-26x=-13-169
x²-26x=-182
x²-26x+(-13)²=-182+(-13)²
(x-13)²=-182+169
(x-13)²=-13
Take square roots of both sides
(x-13)=√-13
x=13±√-13
That can also be written as
X=13+√13i,13-√13i
