Bonjour,
Développer:
Le I est juste
J= 4y²-24y-11y+66-1+35y
J= 4y²+65
K= (3t-7)²+(t-6)(t+2)
K= (3t-7)(3t-7)+(t-6)(t+2)
K= 9t²-21t-21t+49 + t²-6t+2t-12
K= 10t² - 46t + 37
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Bonjour,
Développer:
Le I est juste
J= 4y²-24y-11y+66-1+35y
J= 4y²+65
K= (3t-7)²+(t-6)(t+2)
K= (3t-7)(3t-7)+(t-6)(t+2)
K= 9t²-21t-21t+49 + t²-6t+2t-12
K= 10t² - 46t + 37