①(a+b)눀·(-a-b)눀·(b+a)대 ②(x+y)대·(-x-y)五次方·(-x-y)四次方

2024-12-25 17:38:04
推荐回答(2个)
回答1:

①(a+b)²·(-a-b)²·(b+a)³
解原式=①(a+b)²·(a+b)²·(b+a)³
=(a+b)^(2+2+3)
= (a+b)^7

②(x+y)³·(-x-y)五次方·(-x-y)四次方
=(x+y)³·【-(x+y)】五次方·(x+y)四次方
= -(x+y)^(3+5+4)
= -(x+y)^12

回答2:

①(a+b)²·(-a-b)²·(b+a)²=(a+b)²·(a+b)²·(a+b)²=(a+b)^6
(2)=(x+y)^(3+5+4)-(x+y)^12