asked 41.1k views
3 votes
Cho biểu thức : A=(√x+1)/(√x-2) +(2√x)/(√x+2 )+(2+5√x)/(4-x)

a.Rút gọn A
b.Tính giá trị của A khi x=2
c.Tính giá trị của A khi X-5√x+6=0

asked
User Fobus
by
7.6k points

1 Answer

2 votes

Answer:

A= (3*X - 6
√(x))/(X-4)

A=(3*2 - 6
√(2))/(2-4)= -3+3
√(2)

A=(3*4 - 6
√(4))/(4-4) Unknown

Explanation:

answered
User Indragie
by
8.1k points
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