JaneDoe911 JaneDoe911

02-05-2018
Mathematics

contestada

(a-1)*(a+1) How does the expansion of this thing works?

Respuesta :

Meow321 Meow321

02-05-2018

This is a simple formula:(a-b)*(a+b)= a^2-b^2
And it goes like this for your example: (a-1)*(a+1)=a*a+a-a-1*1=a^2-1^2=a^2-1

Answer Link

Otras preguntas

11. Why is it so important to engage readers in your narrative from the start-by revealing the conflict?

FractionPuja Limbu did 8 out of 10 math problems and Raju lama did 11 out of 15 similar maths problems.Express the number of problems solved by each of them in

Based on the circle graph,how many pounds of milk and eggs does the average American consume each year?PLEASE EXPLAIN IMAGE IS PROVIDED E.300 F.368 G.460 H.552

Find the antonyms of the following words:1). Plentiful.2). Natural.3). Clever.4). Deceitful.5). Diligent.ASAP PLEASENOTICE:NO LINKS PLEASE

PLEASE HELP ME WITH THIS

What is 43.808 in written form

Write a detailed paragraph that explains the use of narrative volces in "The Way to Wealth"; include various methods of presentation from that time period.

True or false? Any fraction made up of two natural numbers is a rational number. Explain your answer.

In how many ways can $9$ friends sit at a circular table if two of them, Anna and Bob, insist on having exactly two people seated between them? (As usual, two s

HELP STAT: Graph the function F(x)= -sec (x/4) +3 on the interval [-2pi,6pi]