Question

if 5+√x=√2-y then the value of (x+y) is ____​

Answer 1

Answer:

f 5+√x=y+√2 then what will be the value of (x+y). Related Answer. यदि x:y=3:5 और x-y=-2 तो x+y का मान क्या होगा?

Answer 2

Given :

• 5 + √x =√2 - y

To Find :

• x + y = ?

Solution :

~ It is given that 5 + √x =√2 - y, We're asked to find the sum of x and y, Let's transpose the numbers in the equation and solve it!

According to the question,

⟶ 5 + √x =√2 - y

⟶ √x + y + 5 = √2

⟶ y = -√x + √2 - 5

⟶ √x + 5 = √2 - y

Comparing like terms,

⟶ x = 2, y = -5

• y = -√x + √2 - 5

⟶ -√2 + √2 - 5

⟶ -5

Sum,

⟶ x + y

⟶ 2 + (-5)

⟶ -3

∴ Hence, The sum of x and y is -3.

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~ Additional information :

• a+ b)² = a² + b² + 2ab

• ( a - b )² = a² + b² - 2ab

• ( a + b )² + ( a - b)² = 2a² + 2b²

• ( a + b )² - ( a - b)² = 4ab

• ( a + b + c )² = a² + b² + c² + 2ab + 2bc + 2ca

• a² + b² = ( a + b)² - 2ab

• (a + b )³ = a³ + b³ + 3ab ( a + b)

• ( a - b)³ = a³ - b³ - 3ab ( a - b)

• If a + b + c = 0 then a³ + b³ + c³ = 3abc