Question

giúp bài 5

Answer 1

a)ĐKXĐ:\(-3x\ge0\Leftrightarrow x\le0\)

b)ĐKXĐ:\(4-2x\ge0\Leftrightarrow4\ge2x\Leftrightarrow x\le2\)

c)ĐKXĐ:\(-3x+2\ge0\Leftrightarrow2\ge3x\Leftrightarrow x\le\dfrac{2}{3}\)

 

Answer 2

d)ĐKXĐ:\(3x+1\ge0\Leftrightarrow x\ge\dfrac{-1}{3}\)

e)ĐKXĐ: \(9x-2\ge0\Leftrightarrow x\ge\dfrac{2}{9}\)

f)ĐKXĐ: \(6x-1\ge0\Leftrightarrow x\ge\dfrac{1}{6}\)