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Sagot :

Bonjour,

t * t + t * 6 + 4 * 9 + 3 * t * t - 9 * t = t² + 6t + 36 + 3t² - 9t = t² + 3t² + 6t - 9t + 36 = 4t² - 3t + 36.

4t² - 3t + 36 pour t = 2. On a : 4 * 2² - 3 * 2 + 36 = 4 * 4 - 6 + 36 = 16 - 6 + 36 = 10 + 36 = 46.

LUWAN

Bonjour,

A = t² + 6t + 36 + 3t² - 9t

A= 4t² - 3t + 36

Pour t = 2:

A= 4 x 2² - 3x2 + 36

A = 4 x 4 - 6 + 36

A = 16 - 6 + 36

A = 10 + 36 = 46

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