Question

solve by using the quadratic formula
z^2-32 z-105=0

Answer 1

Step-by-step explanation:

hope it is help ful to u. . .

Answer 2

Answer:

- 3, 35

Step-by-step explanation:

ax² + bx + c = 0 . Quadratic formula is $x_{12}$ = [-b±√(b²- 4ac)] / 2a

a = 1 , b = - 32 , c = - 105

$x_{1}$ = [32 + √(1024 + 420)] / 2 = (32 + 38) / 2 = 35

$x_{2}$ =  [32 - √(1024 + 420)] / 2 = (32 - 38) / 2 = - 3