# Math Help - Surds Help needed ASAP

1. ## Surds Help needed ASAP

Hi im doing a past paper, and i was wondering how id do this surds question. Im not alowed to use a calculator.
Not sure how to use the equation tool btw so...

(Route 17) multiplied by (route 68)

2. Originally Posted by nugiboy
Hi im doing a past paper, and i was wondering how id do this surds question. Im not alowed to use a calculator.
Not sure how to use the equation tool btw so...

(Route 17) multiplied by (route 68)

Hi nugiboy!

$\sqrt{17} \times \sqrt{68}$

$=\sqrt{17} \times \sqrt{17 \times 4}$

$=(\sqrt{17} \times \sqrt{17} )\times \sqrt{4}$

$=17 \times 2$

$=34$

3. Originally Posted by nugiboy
[snip]

(Route 17) multiplied by (route 68)
Looks more like you're going on a mathematics road trip, dude