SAT Math Practice Question #17220 - SATify | SATify
#17220
quadratic equations
equations
hard
180 sec
Calculator OK
One solution to the given equation 2x2−8x−7=0 can be written as 48−k, where k is a constant. What is the value of k ?
• Up to 5 characters (6 if negative). Only numbers, decimal (.), fraction (/), negative (-). • Fractions must be in lowest terms. • Mixed numbers must be converted to improper fractions.