Question

PLS SOLVE THIS..
IF x+y=5,xy=4,then x-y =?
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Answer 1

Answer:

the answer is 17.

Step-by-step explanation:

here, x+y=5 & xy=4

(x-y)^2 = x^2+y^2-2xy

= (x+y)^2-2×4

= (5)^2 - 8

= 25-8

=17

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Answer 2

$\huge\boxed {Answer}$

Given :-

x + y = 5

xy = 4

To Find out :-

Value of (x - y)

Explanation :-

As we know

(x - y) = √(x + y)² - 4xy

= √(5)² - 4(4)

= √25 - 16

= √9

x - y = 3

Result :-

Value of (x - y) = 3