9. What will be the result when a and b are replaced by 2 and -1, respectively in the expression (-5a-2b) (-2a3b)? a.27/16 b. -5/6 c. 3/7 d. 16 (8kp250 4k-2p-3 ? 10. What rational algebraic expression is equivalent to k² m2 C. b. 2k2p3 a. 4k2p3 كوع ** .d 11. Which of these fractions is in lowest term? a. 4 b. 9 9 6. 12 C. 18 25 d. 81 102 12. Simplify 9xy2 - 6xy 3xy d. 3xy2 C. 33²-2 a. 3y - 2 b. 3y + 2
