9514 1404 393
Answer:
B, D
Step-by-step explanation:
The quadratic expands to ...
(2n -1)² = (2n)² +2(2n)(-1) +(-1)² = 4n² -4n +1
The coefficients can be factored out of the sum, so ...
∑(4n²) = 4∑n² for example
The sum of 60 ones is 60:
So, the sum can be written as ...
_____
It appears that the key to choosing the correct answers is paying attention to signs.
LCD stands for least common denominator so you need to find the LCM, least common multiple, of their denominators, p^3 and 7.
Since p is just a variable, multiply the two to find the LCD.
7 x p^3
7p^3
And that is your answer. Hope this helps.
Answer:
D) center
Step-by-step explanation:
i am taking the test rn and i got it correct just now
-chilly
Answer:
8x^2 - 26x + 33
Step-by-step explanation:
Add the expressions.
2x^2 - 13x + 12 + 6x^2 - 13x + 21 =
= 2x^2 + 6x^2 - 13x - 13x + 12 + 21
= 8x^2 - 26x + 33
