factorize:
(1/9)x^2 - (25/36)y^6
=?
f.3 maths question
2012-09-09 1:06 am
回答 (1)
2012-09-09 10:57 am
✔ 最佳答案
Factorize:(1/9)x^2 - (25/36)y^6 = (1/3)^2 x^2 – (5/6)^2 (y^3)^2
=( 1/3 x)^2 – (5/6 y^3)^2
= (1/3 x + 5/6 y^3) (1/3 x – 5/6y^3)
= [(1/3) x + (5/6) y^3] [(1/3) x – (5/6) y^3] Answer
Note:
1/3 is one third and 5/6 five-sixth.
Please note y^6 = (y^3) 乘 (y^3) = (y^3)^2
收錄日期: 2021-04-29 17:15:18
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