Bonjour,
d. L = - 12/7 x - 21/- 8
L = - 252/56
L = (2 x 2 x 3 x 3 x - 7) / (2 x 2 x 2 x 7)
L = [(2 x 2 x 7) x - 9] x [2 x 2 x 7) x 2]
L = (28 x - 9) / (28 x 2)
L = - 9/2
e. P = - 63/25 x 40/- 81
P = 2 520/2 025
P = (2 x 2 x 2 x 3 x 3 x 5 x 7) / (3 x 3 x 3 x 3 x 5)
P = [(3 x 3 x 5) x (2 x 2 x 2 x 7)] / [(3 x 3 x 5) x (3 x 3 x 5)]
P = (45 x 56) / (45 x 45)
P = 56/45
f. R = 18/- 5 x 20/- 16 x - 4/- 5
R = 360/80 x - 4/- 5
R = 1 440/400
R = (2 x 2 x 2 x 2 x 2 x 3 x 3 x 5) / (2 x 2 x 2 x 2 x 5 x 5)
R = [(2 x 2 x 2 x 2 x 5) x (2 x 3 x 3)] / [(2 x 2 x 2 x 2 x 5) x 5]
R = (80 x 18) / (80 x 5)
R = 18/5
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Bonjour,
d. L = - 12/7 x - 21/- 8
L = - 252/56
L = (2 x 2 x 3 x 3 x - 7) / (2 x 2 x 2 x 7)
L = [(2 x 2 x 7) x - 9] x [2 x 2 x 7) x 2]
L = (28 x - 9) / (28 x 2)
L = - 9/2
e. P = - 63/25 x 40/- 81
P = 2 520/2 025
P = (2 x 2 x 2 x 3 x 3 x 5 x 7) / (3 x 3 x 3 x 3 x 5)
P = [(3 x 3 x 5) x (2 x 2 x 2 x 7)] / [(3 x 3 x 5) x (3 x 3 x 5)]
P = (45 x 56) / (45 x 45)
P = 56/45
f. R = 18/- 5 x 20/- 16 x - 4/- 5
R = 360/80 x - 4/- 5
R = 1 440/400
R = (2 x 2 x 2 x 2 x 2 x 3 x 3 x 5) / (2 x 2 x 2 x 2 x 5 x 5)
R = [(2 x 2 x 2 x 2 x 5) x (2 x 3 x 3)] / [(2 x 2 x 2 x 2 x 5) x 5]
R = (80 x 18) / (80 x 5)
R = 18/5