## powerangers69 Group Title how to simplify sqrt(12^2+12^2x3) ? one year ago one year ago

1. powerangers69 Group Title

$\sqrt{12^2+12^2\times 3}$

$\sqrt{144 +432}= \sqrt{576} = \sqrt{24^2}=24$

3. powerangers69 Group Title

what if u dunno 576=24^2

4. powerangers69 Group Title

the worked solns had sqrt(4x144)=24 how did they get that 4x144

5. powerangers69 Group Title

nvmm

OK do you know what 576 is divisible by 4

Yeah you could have done $\sqrt{144*4}=2\sqrt{144} = 2*12= 24$

8. powerangers69 Group Title

9. powerangers69 Group Title

is there a way to find highest perfect square ? cant remmeber l..

You need to remember these numbers 1, 4, 9, 16, 25, 36, 49, 64, 81, 100, 121, 144, 196, 225.

11. powerangers69 Group Title

hm cant remember but i think teacher showed something like keep halving until u find squares.. 3 years ago ..

12. powerangers69 Group Title

like 576 = 2x288= 4x144

OH yeah that could work

14. powerangers69 Group Title

oh is it just breaking it down into its factors .. xd