nour47 nour47
  • 04-09-2019
  • Mathematics
contestada

If y - x = 2 and y + x = -2, then
(x+y)(x - y) =
(A) -4 (B) -2 (C) 0 (D) 2
(E) 4

Respuesta :

tonio98
tonio98 tonio98
  • 04-09-2019
54 dhdndifivdhdjsjsjjdjxjsjsjdj
Answer Link
litaisone
litaisone litaisone
  • 04-09-2019

Answer:

E: 4

Step-by-step explanation:

This is a system of equations so is you line them up and subtract them, you get -2x=4. solve it and you get x=-2. Then plug it into one of the equations to get y. (y=0). since y is equal to 0, we can conclude that  -2x-2=4

Answer Link

Otras preguntas

ANYONE WANT OVER 50 POINTS IF SO THEN GO TO MY PROFLIE AND THEN YOU WILL SEE THE 11 QUESTONS FOR ART
You rent a trailer to move your furniture. There is a 15% fee added to the $200 rental cost. How much, I. Total, will spend on renting the trailer?
Which number line shows the solution to 11x + 14 < –8?
Why does the majority of Egypt's population live along the Nile River?which the stems of Minimum 1-2 paragraphs.
Convert standard form to slope 9x-7y=-7
Anna bought 2 3/5 lb of grapes and Sanika bought 1/2 lb less than Anna. How many pounds of grapes did they buy in all?
Simplify |−3 − 8| I cant get this answer and i need it for a test so if you can please answer this for me.
How many amendments does the US Constitution have? Question 1 options: 10 14 21 27
Mary Kay is driving from Tampa to Dallas. The distance between the 2 cities is 1,022 miles. Mary Kay’s average rate of speed is 45 mph. The following function r
is globalization always positive? why or why not?