how do you factorise 36m^2 - 25a^2 ?

2008-09-26 11:58 am

回答 (5)

2008-09-26 12:39 pm

✔ 最佳答案

36m^2 - 25a^2
= (6m)^2 - (5a)^2
= (6m - 5a)(6m + 5a)

👍 0 👎 0

2008-09-26 12:01 pm

a^2 - b^2 = (a + b)(a - b)

36m^2 - 25a^2
= (6m)^2 - (5a)^2
= (6m + 5a)(6m - 5a)

👍 3 👎 0

2008-09-26 12:09 pm

a² - b² = (a + b)(a - b)

36m² - 25a² = (6m)² - (5a)² = (6m + 5a)(6m - 5a)

👍 2 👎 0

2008-09-26 12:10 pm

a^2 - b^2 = (a + b) (a - b)

36m^2 = (6m)^2
25a^2 = (5a)^2

So 36m^2 - 25a^2 = (6m)^2 - (5a)^2 = (6m + 5a) (6m - 5a).

I hope that helps. :)

me07.

👍 1 👎 0

2008-09-27 9:03 am

(6m - 5a)(6m + 5a)

👍 0 👎 0