## anonymous one year ago What is the fourth term of the expansion of the binomial (2x + 5)^5?

1. amistre64

you either know of pascals triangle, or a binomial expansion

2. amistre64

if not, then you have a point of study to focus on

3. anonymous

i know what they are i just need help with solving the problem. i dont understand it. and im taking an online course

4. amistre64

well, pascals triangle gives us the coefficients of the expansion the rest is just working the exponents in the right order i spose give it a shot, let me see what you come up

5. amistre64

.. having connection issues

6. anonymous

okay. thank you

7. amistre64

binomial thrm gives us: $(a+b)^n=\sum_{k=0}^{n}\binom{n}{k}a^{n-k}~b^k$

8. anonymous

thank you i got the answer

9. amistre64

yep, good luck and all ;)