Question

buna ms pt ajutor seara frumoasa​

Answer 1

Răspuns:

-2; 0; 2; 4

Explicație pas cu pas:

$2k + (2k + 2) + (2k + 4) + (2k + 6) = 4 \\ 8k + 12 = 4 \iff 8k = 4 - 12 \\ 8k = - 8 \iff \bf k = - 1$

$2k = 2( - 1) = \bf - 2 \\ 2k + 2 = 2( - 1) + 2 = - 2 + 2 = \bf 0 \\ 2k + 4 = 2( - 1) + 4 = - 2 + 4 = \bf 2 \\ 2k + 6 = 2( - 1) + 6 = - 2 + 6 = \bf 4$

=> numerele sunt: -2; 0; 2; 4

Answer 2

$\it x+x+2+x+4+x+6=4 \Rightarrow 4x+12=4\Big|_{-12} \Rightarrow 4x=-8\Big|_{:4} \Rightarrow x=-2\\ \\ \\ Numerele\ \ cerute\ \ sunt:\ -2,\ \ 0,\ \ 2,\ \ 4\ .$