Brayden is simplifying the expression 4n - (n - 3)2. He begins by distributing the negative to the terms inside the parentheses. What should he have done instead?
O combine like terms
O square the binomial
• cube the binomial
O rewrite the expression as a fraction

Identify all the cases where non-probability sampling is used when attempting to study the characteristics of a large city. studies on every subject in the population divide a population in groups and obtain a sample studies with a limited amount of time demonstrate existing traits in a population studies with the nth person selected