1. ## area

hi, my question is to find the area of this rectangle, im not sure how to work it out so could anyone help?

i think the answer would be 2?

2. Originally Posted by andyboy179
hi, my question is to find the area of this rectangle, im not sure how to work it out so could anyone help?

i think the answer would be 2?

$(a+b)(c-d) = ac - ad + bc - bd$

$(1+\sqrt{3})(2-\sqrt{3}) = 2 - \sqrt{3} + 2\sqrt{3} - 3 = \sqrt{3} - 1$

3. could you explain how you got that please?

4. Originally Posted by andyboy179
could you explain how you got that please?
I thought I did ...

5. well i don't understand how you got that, how did (1+root3)(-2root3) end up as 2- root3 + 2 root3-3

6. Originally Posted by andyboy179
well i don't understand how you got that, how did (1+root3)(-2root3) end up as 2- root3 + 2 root3-3
read a lesson and find out how ...