ATAR Notes: Forum

WACE Stuff => Mathematics => Mathematics/Science/Technology => WACE => Mathematics Stage 1 => Topic started by: memeningful on October 01, 2017, 01:24:13 am

Title: factorisation
Post by: memeningful on October 01, 2017, 01:24:13 am

Hello I would like some help with this question

The differnece of two squares is factorised below.
x^2-y^2 = (x+y)(x-y)

Use the difference of two squares formula to fully evaluate 17.1^2-16.9^2

Title: Re: factorisation
Post by: Natasha.97 on October 01, 2017, 07:58:41 am

Hi!

(https://i.imgur.com/d2hsFoa.png)

Hope this helps

Title: Re: factorisation
Post by: memeningful on October 01, 2017, 11:31:03 pm

Quote from: Jess1113 on October 01, 2017, 07:58:41 am

Hi!

(https://i.imgur.com/d2hsFoa.png)

Hope this helps

Thank you, I overcomplicated this problem :(