Question

Simplify the following expression.

√-6√-42

Answer 1

Start by getting rid of the minus signs like this

sqrt ( -6) = sqrt(-1)sqrt(6) = i sqrt 6

Answer 2

sqrt(-43)= sqrt(-1)sqrt=isqrt43

Answer 3

sqrt(6)i * sqrt(42)i
get values of sqrt(6) and sqrt(42) from calculator.. or calculate yourself for self evaluation :D

Answer 4

42, right?

Answer 5

Now the i*i u deal with before anything else, i^2 = i*i = -1

Answer 6

so sqrt(6)i*(42)i

Answer 7

a calculator will not help you hear unless you have a very fancy one

Answer 8

so sqrt(6)i*(42)i

Correct and using i^2 =-1 ->

-sqrt(6)sqrt(42) and now u can just do the normal thing with square roots.