What is the simplified form of this expression?
(-3x2 + x + 5) - (4x2 - 2x)

Find the zeros of the function. write the smaller solution first, and the larger solution second f(x)= (x+6)^2-49

Which of the following is the best first step in solving the equation below? 4+2㏒³x=17

In a test for esp (extrasensory perception), a subject is told that cards only the experimenter can see contain either a star, a circle, a wave, or a square. as the experimenter looks at each of 20 cards in turn, the subject names the shape on the card. a subject who is just guessing has probability 0.25 of guessing correctly on each card. a. the count of correct guesses in 20 cards has a binomial distribution. what are n and p? b. what is the mean number of correct guesses in 20 cards for subjects who are just guessing? c. what is the probability of exactly 5 correct guesses in 20 cards if a subject is just guessing?