4(2x²+23x+45)
4(2x²+18x+5x+45)
4[2x(x+9) +5(x+9)]
4(2x+5)(x+9)
All Factors of 1440: 1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 32, 36, 40, 45, 48, 60, 72, 80, 90, 96, 120, 144, 160, 180, 240, 288, 360, 480, 720 and 1440
choose 2 that add to 92