1.a^2-1
9-x^2
36-y^2
9a^2-b^2
36a^2-25b^2
4m^2-9n^2
16a^2-9b^2
1/25 m^2 - n^2
2.(55-45)(55+45)=10*100=1000
(25-24)(25+24)=1*49=49
(35-25)(35+25)=10*60=600
(37-27)(37+27)=10*64=640
3.(96-94)(96+94)=(96-94)^2=2^2=4
(97-93)(97+93)=(97-93)^2=4^2=16
(28-22)(28+22)=(28-22)^2=6^2=36
(82-88)(82+88)=(82-88)^2= -6^2= 36
(64-66)(64+66)=(64-66)^2= -2^2 =4
Пошаговое объяснение:
1.a^2-1
9-x^2
36-y^2
9a^2-b^2
36a^2-25b^2
4m^2-9n^2
16a^2-9b^2
1/25 m^2 - n^2
2.(55-45)(55+45)=10*100=1000
(25-24)(25+24)=1*49=49
(35-25)(35+25)=10*60=600
(37-27)(37+27)=10*64=640
3.(96-94)(96+94)=(96-94)^2=2^2=4
(97-93)(97+93)=(97-93)^2=4^2=16
(28-22)(28+22)=(28-22)^2=6^2=36
(82-88)(82+88)=(82-88)^2= -6^2= 36
(64-66)(64+66)=(64-66)^2= -2^2 =4
Пошаговое объяснение: