Ответ:
1) Г) 6b-c
2) А) -6m²-12mn=3m(-2m-4n)
3)
7c-ac=c×(7-a)
b⁵-b⁴=b⁴×(b-1)
32x³y+40x²y²=8x²y×(4+5y)
a²b²-4ab³+6a³b²=ab²×(a-4b+6a²)
3p(2k-9)-5(2k-9)=6kp-27p-10k+45
2m(a-b)-n(b-a)=2am-2bm-bn+an
4)
7x²-15x=0
x×(7x-15)=0
x=0
7x-15=0
x=15/7
5)
9(x+2)-(x+2)²=0
(x+2)×(9-x-2)=0
(x+2)×(7-x)=0
x+2=0
7-x=0
x=-2
x=7
Copyright © 2024 SCHOLAR.TIPS - All rights reserved.
Answers & Comments
Verified answer
Ответ:
1) Г) 6b-c
2) А) -6m²-12mn=3m(-2m-4n)
3)
7c-ac=c×(7-a)
b⁵-b⁴=b⁴×(b-1)
32x³y+40x²y²=8x²y×(4+5y)
a²b²-4ab³+6a³b²=ab²×(a-4b+6a²)
3p(2k-9)-5(2k-9)=6kp-27p-10k+45
2m(a-b)-n(b-a)=2am-2bm-bn+an
4)
7x²-15x=0
x×(7x-15)=0
x=0
7x-15=0
x=0
x=15/7
5)
9(x+2)-(x+2)²=0
(x+2)×(9-x-2)=0
(x+2)×(7-x)=0
x+2=0
7-x=0
x=-2
x=7