а)92^2-82^2=(92-82)(92+82)=10*174=1740
б) 42 ^ 2 - 2 * 42 * 39 + 39 ^2=1764-3276+1521=9
в) 37 ^ 3 + 3 * 37 ^ 2 * 63 + 3 * 37 * 63 ^ 2 + 63 ^ 3=37(37^2+3*36*63+3*63^2)=37(1369+6993+3*3969)=37(8362+11907)=37*20269=749953
а)92^2-82^2=(92-82)(92+82)=10*174=1740
б) 42 ^ 2 - 2 * 42 * 39 + 39 ^2=1764-3276+1521=9
в) 37 ^ 3 + 3 * 37 ^ 2 * 63 + 3 * 37 * 63 ^ 2 + 63 ^ 3=37(37^2+3*36*63+3*63^2)=37(1369+6993+3*3969)=37(8362+11907)=37*20269=749953