valeriezamo17 valeriezamo17 20-09-2022 Mathematics contestada Find each product. 29. (r-1)(7r+2) 31. x²(3x-2)(5x+1) 37. (m-n+k)(m+2n-3k) 43. (2m+3)(2m-3) 45. (4x²-5y)(4x²+5y)