# Algebra II

am i correct?

1(2x)^3 + 3(2x)^2*(-5y)^1 + 3(2x)^1*(-5y)^2 + 1(-5y)^3

(2x-5y)^3

1. 👍 0
2. 👎 0
3. 👁 129
1. Anything times 1 or to the first power is itself. Unless you have typos, here is what I get:

(2x)^3 + 12x^2 * (-5y) + 6x * 25y^2 - 125y^3 =

8x^3 - 60x^2y + 150xy^2 - 125y^3

1. 👍 0
2. 👎 0

1. 👍 0
2. 👎 0
3. Ok,thank you guys! :)

1. 👍 0
2. 👎 0

## Similar Questions

2. ### ALGEBRA

A single card is selected from an ordinary deck of cards. The sample space is shown in the following figure. Find the following probabilities. (Enter the answers either as fractions or as decimals rounded to three places.) P(five

3. ### Calculus

A common inhabitant of human intestines is the bacterium Escherichia coli. A cell of this bacterium in a nutrient-broth medium divides into two cells every 20 minutes. The initial population of a culture is 69 cells. (a) Find the

Question: If A= 29 degrees and a= 4.6, find c. There is a diagram shown in the textbook. b is adjacent, c is the hypotenuse, and a is opposite. I know I'm suppose to use SOH CAH TOA, and i tried using tan, but Im not getting the

1. ### Grammar-again

Determine if the following sentences are: a. run-on b. fragment c. correct as is. 1. An appendectomy yesterday. Answer: b. fragment 2. When she felt better, the patient ate. Answer: c. correct as is 3. Her pain was evident on

2. ### Social Studies

I got the question correct but I don't understand why the answer I chose was correct. (I eliminated the ones that I knew were wrong and guessed out of the two answers I had left) Here's the question: Which event contributed most

Of the 4800 students at Medium Suburban College (MSC), 50 play collegiate soccer, 60 play collegiate lacrosse, and 96 play collegiate football. Only 6 students play both collegiate soccer and lacrosse, 6 play collegiate soccer and

4. ### algebra

1)Simplify:(6x^3-16x^2+11x-5)/(3x-2) answer= 2x^2-4x+1-3over3x-2 2)Factor 27x^3-1 completley. answer= (3x-1)^3 if this isnt correct,im not sure how to solve it b/c this makes the most sense to me. 3)Simplify: x^2-3x-28 over

1. ### probability

Let X be a non-negative random variable. Find the PDF of the random variable Y=lnX for each of the following cases: For general fX, fY(y)= Correct answer: fX(e^y)*e^y 2. When fX(x) = {1/4, if 2

2. ### conditional sentence

1. If the sound system hadn't failed,last night's show would have been better a. this is a correct sentence using the 1st conditional form b. this is correct sentence using the 2nd conditional form C. this is a correct sentence

3. ### Math 8R: Homework Check - Part 2

Part 2: Simplify by combining like terms and using the distributive property 11. 3x + 5x Answer: 8x 12. 3x + 5y - 2x + 8, Answer: 1x + 5y + 8 13. 9 + 5m + 6b - 2m - 4, Answer: 3m + 5 + 6b 14. 3ab + 6c - ab + 10 - 2c, Answer: 2ab +

4. ### History of old Europe

The Middle Ages began with the collapse of... A. Renaissance. B. Roman Empire. C. Kingdom of Mali. D. Tang dynasty. My answer- A Why did the system of feudalism arise drink ht eMiddle Ages? A. to develop an economic system b. to