assvecca assvecca
  • 20-03-2021
  • Mathematics
contestada

given that x2 - y2 = 135 and x - y = 15 , find the value of (x+y)2

Respuesta :

Аноним Аноним
  • 20-03-2021

Answer:

x² - y² = 135

<=> (x - y)(x + y) = 135

<=> 15(x + y) = 135

=> x + y = 135/15 = 9

=> (x + y)² = 81

Answer Link

Otras preguntas

What does AID HIV STD stand for
how to write a letter to my father for requsting him some money for my friend who is victim of disaster​
Help pls it's due tmrq
Is the answer that i picked right or?
Need help with chart
1. Find the sum of -9g and 6g + 3
PLEASE HELP! if not its ok Read this line from "the Song of Wandering Aengus" by William Butler Yeats. And walk among long dappled grass, What does "long dappl
What conversion factors determine the number of molecules from the mass of a compound?
Which of the following is part of photosynthesis, but not part of cellular respiration?1.Sunlight2. Oxygen3. Carbon Dioxide 4.Water​
what is 1 +1+100+200+65=