@@dave5544√12 can be rewritten as √(4×3), which is is equal to 2√3, so putting it into the original radical: 2√12; 12 = 4 × 3 2√(4 × 3); √(a × b) = √a × √b 2 × √(4) × √(3); √4 = 2 2 × 2 × √3 4 × √3 4√3 and since the first radical is also 4√3, we can multiply them together or square the same term to get the answer: 4√3 × 2√12; 2√12 = 4√3 4√3 × 4√3; a × a = a² (4√3)² = 4² × (√3)²; (a × b)² = a² × b² 16 × 3; (√a)² = a 48 ps. it looks rly long here, but it's actually rly easy to do on paper (as some operations can actually be done mentally). this was just an extensive way to explain how to do it that way. also don't ask why I decided to waste my time this way, ive been on an algebra kick lately :DD eta. i just realized i replied to a comment from a year ago lol, still hope this helps or you learned how to do it!!
Certainly (±6)^2=36 but √36 is only 6,not to be -6 -6= -√36 If you wanna minus sign in radical(example √-36),you should use imaginary unit "i" and √-36 is represented by √36i.
if i had a calculator i would just square 8, then multiply that by 36, then find the square root of that. it’s a longer method but it works better if you don’t know the square root off the top of your head
If its with exponents for example 3^2 then it would be 9 and the square root of 9 is 3 but square root and square root cancel out so it would be same answer
@@story-time-message they're gonna be very useful in college algebra, trigonometry, calculus, and everything else pretty much. don't underestimate their power because it might stab you in the back soon
@@santino_111gaming3 science, engineering, anything related to business, computer science, these are some notable ones but everything involves math. but most desk jobs or physical jobs don't require math as you have someone else to do it for you
@@elliott2501 Unless you are sending a probe hundreds of thousands of miles away to another planet. This type of fractional difference is what led a U.S. Mars lander to crash on Mars.
@@orlock20 i thought you meant 47 followed by repeating nines which is the same as 48. Like how 0.999999999…. = 1. If it terminates early, then thats a different story but i thought he ellipsis after the 9 meant repeating.
@@orlock200.99999.... repeating is the same thing as 1, believe it or not. There are multiple proofs and explanations available on the internet. It is not an approximation but rather an exact value
@@Doraemon-jm5oo It doesn't repeat. That's where I cut it off. Machines have limits. For instance the scientific calculator for Window has a limit of 32 characters. If one increases the scale large enough, there there will be a noticeable error.
