Answer:
7 800 pour 1/2 heure
Step-by-step explanation:
15 600/2=7 800
Answer:
55
Step-by-step explanation:
Answer:
14
Step-by-step explanation: Multiply 56 by 75% then subtract your product from 56
Answer:x^3+13x^2+3
Step-by-step explanation:
(2x^3+11x^2+5)-(x^3-2x^2+2)
Clearing brackets
2x^3+11x^2+5-x^3+2x^2-2
Collect like terms
2x^3-x^3+11x^2+2x^2+5-2
x^3+13x^2+3