Resposta :
[tex]2x+\frac{3}{4}=0\\2x=\frac{-3}{4}\\x=\frac{-3}{8}\\\\2)\frac{-1}{5x}-6=0\\\\\frac{-1}{5x}=6\\30x=-1\\\\x=\frac{-1}{30}[/tex]
Calcule o zero da função.
f(x)=2x+3/4
f(x)=-1/5x-6
[tex]2x+\frac{3}{4}=0\\2x=\frac{-3}{4}\\x=\frac{-3}{8}\\\\2)\frac{-1}{5x}-6=0\\\\\frac{-1}{5x}=6\\30x=-1\\\\x=\frac{-1}{30}[/tex]