1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
PilotLPTM [1.2K]
3 years ago
9

How 2 do? (n)(n+7)(n+8)

Mathematics
1 answer:
madreJ [45]3 years ago
6 0

Answer:

n^{3} + 15n^{2} + 56n

Step-by-step explanation:

First FOIL  (n + 7)(n + 8) and then distribute n

(n + 7)(n + 8) = n^{2} +15n + 56

 n (n^{2} +15n + 56)

= n^{3} + 15n^{2} + 56n

You might be interested in
Evaluate the Riemann sum for (x) = x3 − 6x, for 0 ≤ x ≤ 3 with six subintervals, taking the sample points, xi, to be the right e
DENIUS [597]
Hello,

Reminders:
$\sum_{i=1}^{n} i= \dfrac{n(n+1)}{2}$



$ \sum_{i=1}^{n} i^2= \dfrac{n(n+1)}{2}$


$ \sum_{i=1}^{n} i^3= \dfrac{n^2(n+1)^2}{4} $


n=6\\
x_{0}=0\\
x_{n}=3\\
\Delta= \dfrac{x_n-x_0}{n}=0.5\\


x_{i} =0+\Delta*i= \frac{i}{2}

$ \sum_{i=1}^{n}\ \Delta*f(x_{i})=\sum_{i=1}^{6}\  \dfrac{i^3/8-6i}{2} $
$= \dfrac{1}{2}\sum_{i=1}^{6}  (\frac{i^3}{8} -6i)=\dfrac{1}{16}*\frac{(6*7)^2}{4}- \frac{9*7}{2}= -3.9575


Download xls
<span class="sg-text sg-text--link sg-text--bold sg-text--link-disabled sg-text--blue-dark"> xls </span>
9ff7829711a1673b799001e7d65e7199.gif
8 0
3 years ago
Read 2 more answers
URGENT PLEASE HELP ME
krek1111 [17]

a) & b) is yes, c) is no. hope you have a good day

5 0
3 years ago
Read 2 more answers
3x+8y=15 , 2x−8y=10
faltersainse [42]
I think is should be (5,0)
3 0
3 years ago
Read 2 more answers
I'm I right?????? because i think i am
Ilya [14]

\sqrt{3x+10}=\sqrt{2x+3}\\\\\\\dfrac{\sqrt{3x+10}}{\sqrt{2x+3}}=1\\\\\\\sqrt{\dfrac{3x+10}{2x+3}}=1\\\\\\\dfrac{3x+10}{2x+3}=1\\\\\\3x+10 =2x+3\\\\x = -7

7 0
3 years ago
Read 2 more answers
The Student Council of your school orders 11 pizzas for an event.
bezimeni [28]

Answer:

I think u just add and  multiple

Step-by-step explanation:

8 0
3 years ago
Other questions:
  • Greatest common factor 48x^5,39x^6
    7·1 answer
  • Question 7 of 12. Step 1 of 1
    6·1 answer
  • Need help with slopes please
    13·1 answer
  • 9x + 10(6x-1) Please Help solve
    15·1 answer
  • Cara and Anna purchased 22 skeins of yarn. Cara bought 4 more than twice the number purchased by Anna. How many skeins did each
    6·1 answer
  • Given the arithmetic sequence an = −4 + 4(n − 1), what is the domain for n?
    9·1 answer
  • A number has three digits. The digit in the hundreds place is the difference of 4 and 2. The digit in tje tens place is the sum
    15·1 answer
  • What is the area of the following circle? D = 2
    13·2 answers
  • This problem illustrates the limit derivation of a Poisson distribution from Binomial distributions. Suppose an average of 6 arr
    7·1 answer
  • Please help!
    8·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!