x+y=6 and x-y=4 please answer this question
Answers
Answered by
1
(x+y)^2 = (x-y)^2 + 4xy
(6)^2 = (4)^2 + 4xy
36-16 = 4xy
20/4 = xy
5 = xy
Answered by
0
Answer:
x+y=6 ______(1)
x-y=4 ______(2)
adding (1) and (2)
2x=10
x=5
putting value of x in (1)
5+y =6
y=1
Step-by-step explanation:
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