(2a+b)(2a-3b)+3a(2a+b)和x(x+y)(x-y)-x(x+y)²
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(2a+b)(2a-3b)+3a(2a+b)和x(x+y)(x-y)-x(x+y)²
4a(x+y)-6x-6y和啊a(a-b)-ab+b²
4a(x+y)-6x-6y和啊a(a-b)-ab+b²
(2a+b)(2a-3b)+3a(2a+b)
=(2a+b)(2a-3b+3a)
=(2a+b)(5a-3b);
x(x+y)(x-y)-x(x+y)²
=x(x+y)(x-y-x-y)
=-2xy(x+y);
4a(x+y)-6x-6y
=2(x+y)(2a-3);
a(a-b)-ab+b²
=a(a-b)-b(a-b)
=(a-b)
很高兴为您解答,skyhunter002为您答疑解惑
如果本题有什么不明白可以追问,
=(2a+b)(2a-3b+3a)
=(2a+b)(5a-3b);
x(x+y)(x-y)-x(x+y)²
=x(x+y)(x-y-x-y)
=-2xy(x+y);
4a(x+y)-6x-6y
=2(x+y)(2a-3);
a(a-b)-ab+b²
=a(a-b)-b(a-b)
=(a-b)
很高兴为您解答,skyhunter002为您答疑解惑
如果本题有什么不明白可以追问,
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