4. Which of the following expressions shows how to use the quadratic formula to solve 2x2-3x - 80?
А
-3 ± √(-3)² - 4(2)(-8)
2(2)
30 (-3)? - 4(2)(-8)
B
2(2)
-33-34 - 4(2)(-8)
С
2(2)
3+
D
- 4(2)(-8)
2(2)

Can't read it

Step-by-step explanation:

yes

step-by-step explanation:

so of course you want to start by plugging the 5 in which goes to 7(5)+3(5)=50 because 7*5=35 and 3*5=15 and then add them together, then plug in the 5 to the other equation as well 9(5)+5=50 because 9*5= 45 and then add 5 and so yes they are equivalent.