Question Number 10082 by konen last updated on 23/Jan/17

(x/6)=(y/4)=(z/k)=k x+y+z=−25 k=?

Commented byridwan balatif last updated on 23/Jan/17

x+y+z=−25 6k+4k+k^2 =−25 k^2 +10k+25=0 (k+5)^2 =0 k=−5