Question

6а во второй степени -2а -1 при x=1/4

Answer 1

$6 x^{2} -2x-1; \\ \\ pri-x = \frac{1}{4} \\ \\ 6* \frac{1}{16} -0.5-1= \frac{3}{8} -1.5=0.375-1.5=-1,125$