Question

If.
4a2+b2=40 and ab=6; then
find 2a+b.​

Answer 1

Step-by-step explanation:

(2a+b)²=4a²+b²+4ab

by putting given value we get

(2a+b)²=40+4×6

= 64

2a+b= +8 or -8. taking square root

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