Question

tim ab

ab * ab = 6ab

Answer 1

ab x ab = 6ab

ab x ab = 600 + ab

ab x ab - ab = 600

ab x (ab - 1) = 600

ab x (ab - 1) = 2 x 2 x 2 x 3 x 5 x 5

ab x (ab - 1) = 24 x 25

=> ab = 25

Answer 2

ab x ab = 6ab

=> ab x ab = 600 + ab

=> ab x ab - ab = 600

=> ab x (ab - 1) = 600

Ta có:

25 x 24 = 600

=> ab = 25

Answer 3

ab x ab = 6ab

ab x ab = 600 + ab

ab x ab - ab = 600

ab x (ab - 1) = 600

ab x (ab - 1) = 2 x 2 x 2 x 3 x 5 x 5

ab x (ab - 1) = 24 x 25

=> ab = 25

Answer 4

ab x ab = 6ab

ab x ab = 600 + ab

ab x ab - ab = 600

ab x (ab - 1) = 600

ab x (ab - 1) = 2 x 2 x 2 x 3 x 5 x 5

ab x (ab - 1) = 24 x 25

=> ab = 25

Answer 5

ab x ab = 6ab

ab x ab = 600 + ab

ab x ab - ab = 600

ab x (ab - 1) = 600

ab x (ab - 1) = 2 x 2 x 2 x 3 x 5 x 5

ab x (ab - 1) = 24 x 25

=> ab = 25