Question

Help please! Thank you!!

Answer 1

Answer:

1.67 and -1.25

Step-by-step explanation:

the quadratic formula is -b+-√b^2-4ac/2a

first you need to add the 4r to both sides so the equation will equal 0

so its 12r^2-5r-25

and lets plug it into the formula

-b = 5; b^2 = 25; 4ac = 1200 and its positive cause -*-=+; and 2a=24

5+-√25+1200/24 = 5+-35/24

so your 2 equation are 5+35/24 and 5-35/24

and the answers would be 1.67 and -1.25