Question

If the sum of two numbers is 9 and their product is 14, what are they

Answer 1

Let the two numbers be x and y.

Then ,

x-y=9 and xy=14

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

=> x^2 + y^2 = (x-y)^2 + 2xy = 9^2 + 2×14

=> x^2 + y^2 = 109 .(i)

Now,

Square of the sum of x and y = (x+y)^2

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

=109 + 2×14 [From (i),

=137

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Answer 2

Answer:

answer is 23

Step-by-step explanation:

x-9=14

x=14+9

x=23