If –1 is a root of f(x), which of the following must be true?
a factor of f(x) is (x – 1).
a factor of f(x) is (x + 1).
both (x – 1) and (x + 1) are factors of f(x).
neither (x – 1) nor (x + 1) is a factor of f(x).

Find the roots of the equation below. x^2 - 6 + 9 = 0

Which of the following statements would be sufficient to prove that parallelograms pqrs is a rectangle ?

Tom and lilly rented a house for $12,000 last year. at the start of the year they bought the house they had been renting directly from the owner for $250,000. they believe they could rent it for $12,000 this year, but stay in the house. how much does tom and lilly’s decision to buy the house change gdp? a. it reduces gdp by $12,000 b. it does not change gdp c. it raises gdp by $238,000 d. it raises gdp by $250,000