1) (x+y-2c)(x+y+2c)=(x+y)²-(2c)²=(x+y)²-4c².
2)(a+1)(a+2)(a-1)(a+2)=(a+2)²*(a²-1).
3) (a+b)+x*(a+b)²+y*(a+b)³=(a+b)(1+x*(a+b)+y*(a+b)²).
Copyright © 2024 SCHOLAR.TIPS - All rights reserved.
Answers & Comments
1) (x+y-2c)(x+y+2c)=(x+y)²-(2c)²=(x+y)²-4c².
2)(a+1)(a+2)(a-1)(a+2)=(a+2)²*(a²-1).
3) (a+b)+x*(a+b)²+y*(a+b)³=(a+b)(1+x*(a+b)+y*(a+b)²).