Coefficient of x^2 in the expansion of (x-3)^3
2 answers:
Answer:

Step-by-step explanation:



Therefore, the coefficient of
is
.
Answer:
-9
Step-by-step explanation:
=> (x-3)³
=> (x-3)(x-3)(x-3)
=> (x²-6x+9)(x-3)
=> x³-3x²-6x²+18x+9x-27
=> 
<u><em>So, the coefficient of x² is -9</em></u>
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Answer:

Step-by-step explanation:
AB = a
AP = 2PQ = 2QB
AB = AP + PQ + QB
= AP +
+ 
AB = 2AP
AP =
-----(1)
And we know QB = 
QB= AP/2 =
---------(2)
Now midpoint of AP =
×
= 
and midpoint of QB =
×
= 
distance between these midpoints =
- 
= 
6/7 because 48 divided by 8 is 6 and 56 divided by 8 is 7
Is this the full question that is stated?
Answer: 2.09
Step-by-step explanation:
Answer:
225
Step-by-step explanation:
90 divided by 2 is 45, 45 times 5 is 225