Bonjour
Développer et réduire
A (5t+7) x (4+9t)
A = 20t + 45t² + 28 + 63t
A = 45t² + 83t + 28
B (5-2t) x (8+4t)
B = 40 + 20t - 16t - 8t²
B = - 8t² + 4t + 40.
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Bonjour
Développer et réduire
A (5t+7) x (4+9t)
A = 20t + 45t² + 28 + 63t
A = 45t² + 83t + 28
B (5-2t) x (8+4t)
B = 40 + 20t - 16t - 8t²
B = - 8t² + 4t + 40.