P-Q should be -11a^2+4b^2+ab
Answer:
But, you didn't ask any question.
Step-by-step explanation:
Remember to post your question next time.
Answer:
15.205
Step-by-step explanation:
simplemathdbdjjsjdi
Answer:
330
Step-by-step explanation:
This is the "choose" formula.
The equation for the choose formula is this:
nCk = n! / k!(n-k)!
! = factorial.
Plug in our numbers:
11C4 = 11! / 4!(11-4)!
39916800 / 24(5040)
39916800 / 120960
330
