Question

Given(x-y)=5 and xy=35. Find the value of (a) x+y (b) x-y​

Answer 1

.. hope this helps you ..

Answer 2

Answer:

(a). (x-y) =5

(x-y)^2= 5^2

x^2+y^2 - 2xy = 25

x^2 + y^2 - 2 ×35 = 25

x^2+y^2 = 25+70 = 100

(X+y) = √100

X+y = 10 answer

(b ) x-y = 5 give it

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