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eimsori [14]
3 years ago
15

(2a 2 + a + 3) (a - 1) Please help

Mathematics
2 answers:
ArbitrLikvidat [17]3 years ago
4 0
Hey there!

You can use distributive property, as I mentioned in your previous questions.

multiply...
2a² × a = 2a³
2a² × -1 = -2a²
a × a = a²
a × -1 = -a
3 × a = 3a
3 × -1 = -3

add all those terms..
2a³ - 2a² + a² - a + 3a - 3
add the like terms

2a³ - a² + 2a - 3

Hope this helped :)
Rudiy273 years ago
3 0
<span><span><span>hope this help you 2<span>a^3 </span></span>− <span>a^2 </span></span>+ <span>2a </span></span>− <span>3</span>
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4 years ago
U.S cities hire about 17,000 police officers per 10,000 residents for a 17/10,000 ratio a new police chief for a city of 35,000
mina [271]

Answer: 59,500

Step-by-step explanation:

Given

For 10,000 residents, 17,000 police officers are hired

The ratio of Police officers and citizens is constant

So, for 35,000 citizens suppose x officers are hired

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Thus, 59,500 officers are required.

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3 years ago
Please help! (1 question)
Hitman42 [59]

Answer:

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4 0
3 years ago
The circumference of a circle is 9.58. Find the length of the diameter. Give your answer to 2DP
harkovskaia [24]

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6 0
4 years ago
PLEASE HELP 25 POINTS
wel

Answer:

 an= n * (n+1)

Step-by-step explanation:

2,6,12,20,.....

6-2 =4

12-6 = 6

So there is no common difference because these numbers are not the same

It cannot be an arithmetic difference

6/2 =3

12/6 =2

So there is no common ratio because these numbers are not the same

It cannot be geometric


2,     6,      12,     20,...

   +4      +6    +8     +10

a1 =2

a2 =2*3

a3 = 2*6=2*2*3=3*4

a4=2*10=2*2*5=4*5

.....

a5 = 5*6 = 30

 an= n * (n+1)

4 0
4 years ago
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