Why? I want Steps..Who do I Calculate This step by step..And Ther results is -3 But i dont know why or how do i do it!? Plss Help me this is the ecuation thqt i have to resolve because i'm going to national quiz or something like that 2√3 - √27
2√3 - √27
Note that we can write √27 as √9 * √3 = 3 * √3 = 3√3
So we have
2√3 - 3√3 = -1√3 or just -√3
And that's it.....