Giai pt:

\(\dfrac{6x-3}{\sqrt{x}-\sqrt{1-x}}=3+2\sqrt{x-x^2}\)

Giai pt:

\(\sqrt{2-3x}=-3x^2+7x-1\)

Giai pt:

\(2x^2+x+1=\sqrt{4x+1}\)

Giai pt:

\(2\sqrt{x-3}=9x^2-x-4\)

Giai pt:

\(x^2-7x=6\sqrt{x+5}-30\)

Giai pt:

\(\sqrt{x-1+2\sqrt{x-2}}-\sqrt{x-1-2\sqrt{x-2}}=1\)

Giai cac pt:

a, \(2x^2-8x+\sqrt{x^2-4x-5}=13\)

b, \(\sqrt{1-x}+\sqrt{4+x}=3\)

c, \(x^3+4x+5=2\sqrt{2x+3}\)

d, \(2\sqrt{2x+4}+4\sqrt{2-x}=\sqrt{9x^2-16}\)

e, \(\sqrt[3]{x-2}+\sqrt{x+1}=3\)

Cho 6,5g kem tac dung vua du voi dung dich Axit clohidric 7,3% sinh ra kem clora va khi hirdro.

a, Viet PTPU

b, Tinh khoi luong dung dich axit clohidric da dung

c, Tinh the tich khis Hidro (dktc)

d, Tinh nong do dung dich sau phan ung

rút gọn:\(A=\dfrac{4\sqrt{4-\sqrt{5+\sqrt{21+\sqrt{80}}}}}{\sqrt{10}-\sqrt{2}}\)

Cho x,y,z>0 và xy+yz+zx=1

Tính giá trị bt:

\(P=x\sqrt{\dfrac{\left(1+y^2\right)\left(1+z^2\right)}{1+x^2}}+y\sqrt{\dfrac{\left(1+z^2\right)\left(1+x^2\right)}{1+y^2}}+z\sqrt{\dfrac{\left(1+x^2\right)\left(1+y^2\right)}{1+z^2}}\)