How to distribute fractions in a linear equation

Which of the following quartic functions has x = –1 and x = –2 as its only two real zeroes?

Select the correct answer from each drop-down menu. a system of equations and its solution are given below. system a complete the sentences to explain what steps were followed to obtain the system of equations below. system b to get system b, the equation in system a was replaced by the sum of that equation and times the equation. the solution to system b the same as the solution to system a.]

Out of 50 students surveyed, 16 have a dog. based on these results, predict how many of the 280 students in the school have a dog.