Question

find the coffiecient of x^2 and x in the expansions (x-3) (x+7) (x-8)
Plz tell me step by step​

Answer 1

Answer:

Friend and foe

The main microorganisms in and on our bodies are protozoa, algae, fungi, bacteria and viruses. Most microorganisms are beneficial, for example, there are microorganisms in our large intestine that synthesise vitamins and allow them to be absorbed into the bloodstream.

Answer 2

{x}^3 - 4x {}^{2} - 53x + 168