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\[\sqrt{12^2+12^2\times 3} \]

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

what if u dunno 576=24^2

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

nvmm

OK do you know what 576 is divisible by 4

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

yeah my bad ..

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.

like 576 = 2x288= 4x144

OH yeah that could work

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

Thats it =D

thankss