52
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A + B = 64
( A ) ( B ) = 448
B = 448 / A
A + 448/A = 64
A^2 - 64A + 448 = 0
Application of the quadratic formula gives A = 56 and B = 8 <----[ Answer ]---
The factor pairs of 48 are (48,1)(24,2)(16,3)(12,4)(8,6) None of them add up to 4. Factors of 48 that do are (3,1) and (2,2)
-56
704
The Least Common Multiple (LCM) of 16 and 32 is 32. The other common multiples of 16 and 32 are all multiples of 32, i.e. 32, 64, 96, 128, 160, 192, 224, etc.
32, 64, 96, 128, 160, 192, 224, 256, 288, 320, 352, . . .18, 36, 54, 72, 90, 108, 126, 144, 162, 180, 198, . . .
Multiples of 2 are 2, 4, 6, 8, 10, 12, 14, 16, 18, . . . Multiples of 8 are 8, 16, 24, 32, 40, 48, 56, 64, 72, . . .