Question

решите пожалуйста !!!!!!

Answer 1

8x^2-10x-3>>0
8x^2-10x-3=0
D=(-5)^2-8*(-3)=49
x1=(5-7)/8=-0.25
x2=(5+7)/8=1.5
8(x+0.25)*(x-1.5)>>0
(x+0.25)*(x-1.5)>>0
x=-0.25, x=1.5
x<=-0.25 и x>=1.5