Question

If x-y=10 and x^2+y^2=18,find xy.​

Answer 1

Answer:

xy= -41

Step-by-step explanation:

using the formula (x-y)^2=x²+y²-2xy

substitute the values

we get

10²=18-2xy

100-18=-2xy

-41=xy.

hence the answer is -41...

i hope it was helpul to you ....

thank you .....

Answer 2

Answer:

answer is -41 please mark as brainlist and follow me