Odpowiedź:
1/2 (3a-2)= 1/2 x 3a + 1/2 x (-2) = 3/2 a - 1
2/3 (1,5+3x) = 2/3 x 3/2 + 2/3 x 3x = 1 + 2x
k(3l+2m) = k x 3l + k x 2m = 3kl + 2m
-p (r-5s) = p x r + (-p) x (-5s) = -pr + 5s
Szczegółowe wyjaśnienie:
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Odpowiedź:
1/2 (3a-2)= 1/2 x 3a + 1/2 x (-2) = 3/2 a - 1
2/3 (1,5+3x) = 2/3 x 3/2 + 2/3 x 3x = 1 + 2x
k(3l+2m) = k x 3l + k x 2m = 3kl + 2m
-p (r-5s) = p x r + (-p) x (-5s) = -pr + 5s
Szczegółowe wyjaśnienie: