9. Factor the greatest common factor of 3x2y3z4 - 9x3y2z2 + 6x?y224.

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?

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

What will the graph look like for a system of equations that has no solution? a. the lines will be perpendicular. b. the lines will cross at one point. c. both equations will form the same line. d. the lines will be parallel.