The opposite of three squared.

Which of the binomials below is a factor of this trinominal? x^2-13+30

12. the amount of money in a bank account decreased by 21.5% over the last year. if the amount of money at the beginning of the year is represented by ‘n', write 3 equivalent expressions to represent the amount of money in the bank account after the decrease?

Define multiplicative inverse. give an example of a number and its multiplicative inverse.