Vivian is solving the equation 0=x2−5x−4 0 = x 2 − 5 x − 4 using the quadratic formula. which value is the negative real number solution to her quadratic equation? round to the nearest tenth if necessary. -5.7 -4 -1 -0.7

-0.7

the quadratic formula is

substitute the correct values in

where it says +- you would type this into your calculator with + AND THEN - to get two separate answers.

when you type + you get the answer of: 5.701562119...

when you type - you get the answer of:

-0.7015621187...

when you round to the nearest tenth you get -0.7

hope this helps! :)

have a great day ~ •lipika•