Odpowiedź:
[tex]15 \sqrt{25} = 15 \times 5 = 75 \\ - 6 \sqrt{121} = - 6 \times 11 = - 66 \\ - 8 \sqrt{100} = - 8 \times 10 = - 80 \\ 12 \sqrt{169} = 12 \times 13 = 156 \\ - 13 \sqrt{196} = - 13 \times 14 = - 182[/tex]
Pozdrawiam :)
