rayoobrian001 rayoobrian001

12-02-2021
Mathematics

contestada

QUESTION THREE 30 MARKS
3a) multiply x + y by x - y

Respuesta :

howardabbie998 howardabbie998

12-02-2021

Answer:

x²+xy+yx-y²

Step-by-step explanation:

(x+y)(x-y)

x times x =x²

x times y= xy

y times x=yx

y times y=y²

Answer Link

12-02-2021

Step-by-step explanation:

It's x*x+x*y-x*y-y*y => x^2 +xy - xy- y^2 = x^2-y^2

Answer Link

Otras preguntas

advantages of the 1920s

who is the american president that got shot in a theatre

Which sentence does not contain any errors in comma usage? A. The writer writes mysteries and thrillers and then she publishes them under a false name. B. The s

Which sentence uses a verb that agrees with its subject? A. Into the tall grasses hop the young rabbit. B. On the fire escape sit two stray cats. C. There was o

How to get the simplest form of 40/50?

Why is disagreement protected in a democracy? a.disagreement is not protected in a democracy b.reasonable people will disagree on what is best for the public in

Which action would most likely increase the amount of carbon in the environment? A. cutting down most of the trees in a forest to make furniture B. using energy

With what force will a car hit a tree if the car has a mass of 3000 kg and it is accelerating at a rate of 2 m/s2? 6000N 1500 N 1000 N 300 N

. Which of the following best explains the Emancipation Proclamation? A. It stated that slavery should be abolished at the end of the Civil War. B. It stated th

what is a word phrase for 12+a