1 This bottle was used for drinking water

2 English is spoken all ever the world

x²-10x+16=x²-8x-2x+16=(x²-8x)-(2x-16)=x(x-8)-2(x-8)=(x-8)(x-2)

..................................

3x+5x−3=23x+5x-3=2

3x+5=2(x−3)3x+5=2(x-3)

3x+5=2x−63x+5=2x-6

3x−2x=−6−53x-2x=-6-5

x=−11

có mDD KOH = 100 gam

⇒ mKOH = 100.32% = 32 gam

⇒ mH2O (trong dung dịch ) = 100 - 32 = 68 gam

Mặt khác d H2O = 1 g/ml

⇒ V H2O =  =  = 68 ml

Cho tôi copy nha

B nha

 The doctor should treats his patients more patiently