a,\(\left(4.\sqrt{x-1}-7\right).\left(2-\sqrt{x-1}\right)=5-4x\)

b,\(\frac{2}{5}.\left(\sqrt{2x+1}+5\right)=\frac{1}{4}.\left(\sqrt{2x+1}-1\right)\)

mn ơi giúp mik vs :((

ai giúp mik với mik nhiều bt lắm

a, 1/x-1 - 7/x+2 = 3/x²+x-2

b,x+3/x-4 + x-1/x-2 = 2/6x-8-x²

c,1/x+1 + 2/x³-x²x+1 = 3/1-x²

d, 3x-1/x-1 - 2x+5/x+3 = _{1 -} 4/x²+2x-3

e, x²+2x+1/x²+2x+2 + x²+2x+2/x²+2x+3 = 7/6

f, 1/4x²-12x+9 - 3/9-4x²=4/4x²+12x+9

giải pt chứa ân rở mẫu sau:

2x/x-1=4/x²+2x-3=2x-5/x+3

Mn giúp mik nha!