Question

 If A = √4, B = √324 then √AB​

Answer 1

Answer:

When you get a question like this and you want to try to solve it without a calculator, it helps to factorise the big number to see whether it can be written as a product (multiplication) of factors that might be squares. 324 = 4 x 81 , so:

324 = (2 squared) x (9 squared), & you can write 324 = (2 x 9) squared, or:

324 = 18 squared. Therefore the square root of 324 is 18.

Try this for homework: what is the cubic root of 512?

Step-by-step explanation:

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Answer 2

Answer:

√1296=12√3

Step-by-step explanation:

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