cherry12345627
13.10.2020 •
Mathematics
10. Find the coefficient of x term in the expansion of (2x - 5)(x2 – 3x2 + 4).
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Ответ:
coefficient of x term is 8
Step-by-step explanation:I(2x-5)(x2-3x2+4)
(2x-5)(-2x2+4)
-4x3+8x+10x2-20
coefficient of x is 8
Ответ:
The truck travelled in 2h=80(2)=160km
The time taken for truck in 30km=30/80=0.37h=20min(Not required)The time taken by car to cross =30/120=15minThe truck travelled in 15min=1/4(80)=20kmHence total distance =160km+20km=180kmThe trucks destination is 180km from Auckland