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

At the end of a snowstorm, Adrian had 17 inches of snow on his lawn. The temperature then increased and the snow began to melt at a constant rate of 2 inches pe

To get into shape, Miles ran for 1 minute on Monday, 3 minutes on Tuesday, 6 minutes on Wednesday, and 10 minutes on Thursday. If he continues, how many minutes

Fill in the blank. Add commas, colons, and semicolons to the following sentence. Use exact spelling and correct spacing. -Team practice-first warm-up second dri

Pls help it for homework 30 points 1 question

Multiply. Write your answer as a fraction in the simplest form. (−1 2/3)^3

NEED HELP!!!!!(WILL GIVE MORE POINTS TO CORRECT ANSWER) Look at picture

a team of engineers is asked to evaluate several different design solutions. Which action is most likely to help them with their evaluations? A. deciding whic

"..... i began to hope would soon put an end to my miseries." this statement is an example of which point of view

9. Bethany is making 6 cakes for a charity bake sale. Each cake requires the ingredients shown below. 2 cups flour 1 cups sugar 3 teaspoons baking powder 1 3 си

Read the excerpt from an adaptation of "To Build a Fire.” When he fell down a second time, the dog curled its tail over its forefeet and sat in front of him, fa