Bonjour;
E = 4 + 2 ( 3 t + 5 ) + ( 3 t² - 4 ) - ( 2 t + 5 ) x 3.
= 4+6t +10 +3t² -4 -6t -15
= 3t² -5
Réponse:
E=4+2(3t+5)+(3tcarré-4)-(2t+5)×3
E=4+2(3t+5)+3tcarré-4-3(2t+5)
E=2(3t+5)+3tcarré-3(2t+5)
E=6t+10+3tcarré-6t-15
E=-5+3tcarré
E=3tcarré-5
3tcarré=E+5
tcarré=(E+5)/3
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Verified answer
Bonjour;
E = 4 + 2 ( 3 t + 5 ) + ( 3 t² - 4 ) - ( 2 t + 5 ) x 3.
= 4+6t +10 +3t² -4 -6t -15
= 3t² -5
Réponse:
E=4+2(3t+5)+(3tcarré-4)-(2t+5)×3
E=4+2(3t+5)+3tcarré-4-3(2t+5)
E=2(3t+5)+3tcarré-3(2t+5)
E=6t+10+3tcarré-6t-15
E=-5+3tcarré
E=3tcarré-5
3tcarré=E+5
tcarré=(E+5)/3