Bonjour,
a. 3/2x (5/4x + 4)
= 3/2x * 5/4x + 3/2x * 4
= (3 * 5)/(2 * 4)x² + (3 * 4)/2x
= 15/8x² + 12/2x
= 15/8x² + 6x
b. 5/3x² + 10/7x
= 5x * (1/3x + 2/7)
c. 1/x + 1/(x + 2)
= pour x ≠ 0 et x ≠ -2
d. pour x ≠ 0 et x ≠ -3
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Bonjour,
a. 3/2x (5/4x + 4)
= 3/2x * 5/4x + 3/2x * 4
= (3 * 5)/(2 * 4)x² + (3 * 4)/2x
= 15/8x² + 12/2x
= 15/8x² + 6x
b. 5/3x² + 10/7x
= 5x * (1/3x + 2/7)
c. 1/x + 1/(x + 2)
= pour x ≠ 0 et x ≠ -2
d. pour x ≠ 0 et x ≠ -3