Question:Factorise `x^2` - `y^2` and hence evaluate `100^2` - `99^2` 

Answer `x^2` - `y^2` =(x+y) (x-y) `:.` `100^2` - `99^2` =(100+99) (100-99) =199+1 =200 

+ ExplanationNot Moderated
+ Report
Total Preview: 1004
Factorise `x^2` - `y^2` and hence evaluate `100^2` - `99^2`
Copyright © 2024. Powered by Intellect Software Ltd