Question

Solve z2 – 2z – 35 = 0 using the zero product property.

A. z = 7, –5
B. z = –3, 5
C. z –7, –5
D. z = –1, –3

Answer 1

z^2 - 2z - 35 = 0
(z - 7)(z + 5) = 0

z - 7 = 0
z = 7

z + 5 = 0
z = -5

solution is : z = 7,-5