Simple Factorization
回答 (2)
2007-10-04 6:23 am
✔ 最佳答案
5a^2+26ab+5b^2 = (5a+b)(a+5b)
2007-10-04 21:27:09 補充：
5a^2 26ab 5b^2 =5a^2 ab 5b^2 25ab=a(5a b) 5b(5a b)=(5a b)(a 5b)OR5a^2 26ab 5b^2 =5a^2 25ab 5b^2 ab=5a(a 5b) b(5b a)=(a 5b)(5a b)Hoping u know what i mean
2007-10-04 21:27:42 補充：
加號嚟ga
2007-10-04 7:36 am
method 1
5a^2+26ab+5b^2
=5a^2+25ab+ab+5b^2
=5a(a+5b)+b(a+5b)
=(a+5b)(5a+b)
method 2
cross-method
5a^2+26ab+5b^2
a 5b
5a b
25ab+ab=26ab , where is equal to the middle term of (5a^2+26ab+5b^2)
so 5a^2+26ab+5b^2=(a+5b)(5a+b)
5a^2+26ab+5b^2
=5a^2+25ab+ab+5b^2
=5a(a+5b)+b(a+5b)
=(a+5b)(5a+b)
method 2
cross-method
5a^2+26ab+5b^2
a 5b
5a b
25ab+ab=26ab , where is equal to the middle term of (5a^2+26ab+5b^2)
so 5a^2+26ab+5b^2=(a+5b)(5a+b)
收錄日期: 2021-04-13 13:44:53
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