(a+b)^2+10(a+b)(a-b)+25(a-b)^2求啊~o(∩_∩)o...
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(a+b)^2+10(a+b)(a-b)+25(a-b)^2求啊~o(∩_∩)o...
(a+b)^2+10(a+b)(a-b)+25(a-b)^2
求啊~
o(∩_∩)o...
(a+b)^2+10(a+b)(a-b)+25(a-b)^2求啊~o(∩_∩)o...
(a+b)^2+10(a+b)(a-b)+25(a-b)^2
=[(a+b)+5(a-b)]^2
=(6a-4b)^2
=[2(3a-2b)]^2
=4(3a-2b)^2.
(a+b)^2+10(a+b)(a-b)+25(a-b)^2={a+b+5(a-b)}^2=(6a-4b)^2
(a+b)^2+10(a+b)(a-b)+25(a-b)^2
=[(a+b)+5(a-b)]^2
=(6a-4b)^2
=4(3a-2b)^2
还是分解因式哦!是完全平方公式的运用
(a+b)^2+10(a+b)(a-b)+25(a-b)^2
=[(a+b)+5(a-b)]^2
=(a+b+5a-5b)^2
=(6a-4b)^2
=[2(3a-2b)]^2
=4(3a-2b)^2
要是看不懂~
可以把(a+b)和(a-b)看做整体!
好像是中学的题目啊,我也来试试,呵呵。
(a+b)^2+10(a+b)(a-b)+25(a-b)^2
=[(a+b)+5(a-b)]^2
=(6a-4b)^2
=4(3a-2b)^2
-2a(a+b)+b(a+b)
(a+2b)(a-2b)+(a-b)(a+b)-2(a-3b)(a-b)
(a-b)^2-10(a-b)+25
(a-b)^2+10(a-b)+25
(a+b).(a-b)
a/b-b/a
a+b>a-b,
5(a*a*b-3*a*a*b)-2*(a*a*b-7*a*b*b)
-a-b+2b^2/a+b
化简:|a+b|+|b-a|+|2b|
|a+b|-|b-a|+|2b|化简哦!
a-b+2b²/a+b
通分a-b,2b^/a+b
化简(2a-b/a+b-b/a-b)除以a-2b/a+b
计算:((a+b)(a-b)-(a-b)^2+2b(a-b))/4(a-b)
化简(2a-b/a+b-b/a-b)除以a-2b/a +b
化简:{[(2a-b)/(a+b)]-[b/(a-b)]}÷[(a-2b)/(a+b)]
计算·[(2a+-b)/(a+b)-b/(a+b)]/(a-2b)/(a+b)