X^2-4x-5=0
use quadratic formula to solve

x = 5, x = -1

Step-by-step explanation:

Quadratic formula: if ax² + bx + c = 0, x = (-b ± √(b² - 4ac))/2a

Plug in: x² - 4x - 5 = 0, x = (4 ± √(16 + 20))/2

Simplify: x = (4 ± 6)/2

Divide: x = 5, x = -1

stop cheating

step-by-step explanation:

part d

step-by-step explanation:

theresa talked her parents into getting sd cards for her phone and her brother’s phone. inserting an sd card into a phone gives it more storage. they both get 8-gigabyte sd cards. how many bits of storage come with each sd card? type your answer in both scientific and standard notation.