Question

Please answer this question it is very urgent ​

Answer 1

Step-by-step explanation:

Here,

4a^2+b^2= 40

=> (2a+b)^2= . (2a) ^2+(b) ^2+4ab

=> (2a+b) = 1600-4ab

And, ab = 6

So, 2a+b = 1600-24

= 1576

hope it helps

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Answer 2

Answer:

here, 4a²+b²=40 i,)

ab=6

squaring , (2a+b)²=4a²+b²+4ab

=40 +4(6)

=40+24

=64

2a+b=√64

2a+b=±8

its value may be +8 or-8