algebra

posted by .

I was wondering what the answer to this is.

(x-7)3 3 means it is cubed


i workedit out but i was wondering what it might be.

  • algebra -

    (x-7)^3
    = (x-7)(x-7)(x-7)
    = (x-7)(x^2 - 14x + 49)
    = x^3 - 14x^2 + 49x - 7x^2 + 98x - 343
    = x^3 - 21x^2 + 147x - 343

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

  1. maths

    If A=1+r^a+r^2a+r^3a+.......................to infinity B=1+r^b+r^2b+................to infinity then find a/b=?
  2. algebra

    Can someone please help me with this? Solve x^3-3x^2-10x=0 by factoring. Take out x. x(x^2-3x-10)=0 For the polynomial inside the parentheses, you want factors of 10 that will add or subtract to give 3. 10 and 1 gives 11 or 9 so that
  3. science

    Our teacher wore a t-shirt with red lettering that read "if what you're reading is blue you're running to fast" and asked us to find out what it means. Any body have a clue, I was wondering about doppler.
  4. Accounting

    I was just wondering if I was doing this right. In my accounting class we are studying furture value. I was wondering if I was doing this one right... if I was to figure out $5000 that was compounded quartery at 6% for five years, …
  5. Chemistry

    Okay so I'm doing doing significant figures in chem. And I was just wondering for problems like this: .000456 dm + .00524 m Do I have to actually convert stuff?
  6. language arts

    tell which letter is a correct answer to the questions. a question may have more than one right answer. Which of the following can be inflamed?
  7. College Algebra

    I'm wondering how to answer this. The conjugate of 2-Square root 3 is?
  8. Social Studies

    Hai I was wondering if you could check my answer?
  9. AP Chem

    Hey guys! I'm not really stuck on this problem, but I was wondering if someone could look it over to make sure that what I did makes sense. Thank you: 1) Balance this equation. What is the coefficient in front of I2?
  10. Math

    Why do you have to use estimation to find the number of triangles you need for the string?

More Similar Questions