Question

Помогите!!!!!!!!!!!!!срочно!!!!!! ​

Answer 1

$sqrt{-4(b-frac{1}{14} )} =sqrt{-4b+frac{4}{14} } =sqrt{-4b+frac{2}{7} } \\-4b+frac{2}{7} geq 0\\-4bgeq -frac{2}{7} |:(-4)\\bleq frac{2}{28}\ \bleq frac{1}{14}$