You use long division when you divide polynomial by other polynomials. You use synthetic division to divide polynomials by binomials of the form (x-k).
Answer:
here x is given 3 so put it on given eqa 2×3-5=1
You can use the cosine rule for this - you might have to change some of the letters around for it to make sense though. Hope this helps!
Answer:

Step-by-step explanation:

1). add 5 + 7

