Question

4-7x^2/2-x - 6x^2/2-x при x=-3/4 Можно с объяснением

Answer 1

4-7x^2/2-x - 6x^2/2-x=   при x=-3/4         -3/4=-0.75
(4-7((-3/4)^2)-6((-3/4)^2))2+3/4=
(4+3.9375+3.375)/2.75=
11.3125/2.75=4.11