Question

помогите с алгеброй 7 и 8

Answer 1

7.
$=( frac{1-9p^2}{p^2}):( frac{3p+1}{p})= ( frac{(1-3p)(1+3p)}{p^2})*( frac{p}{3p+1})= frac{1-3p}{p} \ frac{1-3*0.1}{0.1}=7$
8.
$-3 leq frac{x-4}{4} leq 11 \ -12 leq x-4 leq 44 \ -8 leq x leq 48 \ 48+8=56$
56 целых значений