Question

sa se determine toate valorile lui a si b pentru care sunt adevarate urmatoarele egalitati:
a×b=6
a×b=10
a×b=12
a×b=15
a×b=28
a×b=42
a×b=56

Answer 1

a)a×b=6

2×3=6

3×2=6

6×1=6

b)a×b=10

2×5=10

5×2=10

10×1=10

c)a×b=12

2×6=12

3×4=12

4×3=12

6×2=12

12×1=12

d)a×b=15

5×3=15

3×5=15

15×1=15

e)a×b=28

4×7=28

28×1=28

14×2=28

f)a×b=42

6×7=42

42×1=42

21×2=42

14×3=42

g)a×b=56

14×4=56

7×8=56

56×1=56

28×2=56

Answer 2

a × b = 6

6 = 1 x 6 = 2 x 3 = 3 x 2 = 6 x 1

10 = 1 x 10 = 2 x 5 = 5 x 2 = 10 x 1

12 = 1 x 12 = 2 x 6 = 3 x 4 = 4 x 3 = 6 x 2 = 12 x 1

15 = 1 x 15 = 3 x 5 = 5 x 3 = 15 x 1

28 = 1 x 28 = 2 x 14 = 4 x 7 = 7 x 4 = 14 x 2 = 28 x 1

42 = 1 x 42 = 2 x 21 = 3 x 14 = 6 x 7 = 7 x 6 = 14 x 3 = 21 x 2

56 = 1 x 56 = 2 x 28 = 4 x 14 = 7 x 8 = 8 x 7 = 14 x 4 = 28 x 2 = 56 x 1