if 4x^2 +y^2=40 and xy=6 , then find the value of 2x+y
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Answered by
2
hlo
i think u have put values wrong .
i think u have put values wrong .
Answered by
3
Answer:we have,
(2x+y)^2=(2x)^2+y^2+2×2x×y
=(4x^2+y ^2)+4xy
=40+4×6
(2x+y)^2 =64
2x+y=(8)^2
2x+y = +or_8
Step-by-step explanation:
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