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 is North America’s greatest river system? South America’s?

One of the most dramatic moments in the Gita is the exchange between Arjuna and Krishna, about whether it's philosophically justifiable to lay down one's arms a

Once elected how did Jefferson handle previous federalist policies

HELP ME PLEASE PLEASE I NEED HELP

Consider the following reaction: 2NO(g)+2H2(g)→N2(g)+2H2O(g). The rate law for this reaction is first order in H2 and second order in NO. Write the rate law. T

what is the solution to this equation?3q +5 =-2q+20

what word do you say before the verb to indicate that something doesn't happen in Spanish?

Groupon decides to hire a full-service advertising agency to create a new campaign for the company. The ad agency agrees to be compensated if Groupon notices an

Tom is an organic gardener. For several years, he produced only for his own consumption. Last year, he sold his vegetables at a farmer’s market. This year, he

What is the answer for -1.2(-3.05)