Answer:
-23
Step-by-step explanation:
b² - 4ac
= (3)² - 4(-2)(-4)
= 9 - 32
= -23
_________
hope this helps!
Answer:
- 23
Step-by-step explanation:
given the expression
b² - 4ac
substitute a = - 2, b = 3 and c = - 4 into the expression
= 3² - (4 × - 2 × - 4)
= 9 - (4 × 8)
= 9 - (32)
= 9 - 32
= - 23
