Ответ:
1) 81a⁴-1=(3a-1).(3a+1).(9a²+1)
2) 49-x²=0
=x.(49-x)=0
x=0
49-x=0
x1=0 x2=49
3)(x²-2)-4(x²-2)+4=(x²-2-2)²=(x²-4)²=((x-2).(x+2))
Copyright © 2025 SCHOLAR.TIPS - All rights reserved.
Answers & Comments
Ответ:
1) 81a⁴-1=(3a-1).(3a+1).(9a²+1)
2) 49-x²=0
=x.(49-x)=0
x=0
49-x=0
x1=0 x2=49
3)(x²-2)-4(x²-2)+4=(x²-2-2)²=(x²-4)²=((x-2).(x+2))