Which of the following represents the factorization of the trinomial below?
-2x - 14x2 - 12x
O A. -2(x+ + 1)(x+6)
O B. -2(x+1)(x-6)
O c. -2x(x + 1)(x-6)
O D. -2x(x + 1)(x+6)

Yuto and hila attempted to solve the same inequality. their work is shown below. which statement is true about the work shown above? yuto is correct because he isolated the variable correctly and reversed the inequality symbol. yuto is incorrect because he should not have reversed the inequality symbol. hila is correct because she isolated the variable correctly and reversed the inequality symbol. hila is incorrect because she should not have reversed the inequality symbol.

Suppose that 3% of all athletes are using the endurance-enhancing hormone epo (you should be able to simply compute the percentage of all athletes that are not using epo). for our purposes, a “positive” test result is one that indicates presence of epo in an athlete’s bloodstream. the probability of a positive result, given the presence of epo is .99. the probability of a negative result, when epo is not present, is .90. what is the probability that a randomly selected athlete tests positive for epo? 0.0297

How do i simply this expression (quadratic formula basis) on a ti-84 or normal calculator?