Robert J. answered • 11/26/12
Tutor
4.6
(13)
Certified High School AP Calculus and Physics Teacher
4x2-9x-4 = 0
a = 4, b = -9, c = -4
b2 - 4ac = (-9)2 - 4(4)(-4) = 145 <==Answer
Breen C.
asked • 11/26/12(2x)2 - 9x - 4 = o
What is the value of the discriminant for this equation?
More
1 Expert Answer
Still looking for help? Get the right answer, fast.
Ask a question for free
Get a free answer to a quick problem.
Most questions answered within 4 hours.
OR
Find an Online Tutor Now
Choose an expert and meet online. No packages or subscriptions, pay only for the time you need.
Sarah B.
is the problem supposed to read (2x)^2 or (2x)*2? because that changes the answer completely.
11/27/12