Jawapan

  • somi
  • Pengguna Baru
2016-09-27T17:15:08+08:00
Not sure if it is right..
2016-09-28T00:17:29+08:00
(x)(x+15)=250... x²+15x-250=0... (x+25)(x-10)=0... x=-25 , x=10.... ambil x=10 sebab dlm Panjang x da nilai NEGATIF... panjang = 10+15 = 25 m