Question

(3-x)(0,2x+1,4)=0 срочно помогите

Answer 1

Ответ:

Объяснение:

(3-x)(0,2x+1,4) =0

3-x=0 или 0,2x+1,4=0

-x=-3         0,2x=-1,4

x=3           x=-7

Answer 2

$\displaystyle\bf\\(3-x)(0,2x+1,4)=0\\\\\\\left[\begin{array}{ccc}3-x=0\\0,2x+1,4=0\end{array}\right\\\\\\\left[\begin{array}{ccc}-x=-3\\0,2x=-1,4\end{array}\right\\\\\\\left[\begin{array}{ccc}x_{1}=3 \\x_{2}=-7\end{array}\right\\\\\\Otvet \ : \ 3 \ ; \ -7$