Question

5√24*3√-18 @The OFFICIAL EFC …

Answer 1

HELP

Answer 2

15√(-432)
180i√(3)

Answer 3

pleas explain how u did that...

Answer 4

432 = 144*3
15√(144 * -3)
15√(144)√(-3)
15*12√-3
180√-3
180i√3

Answer 5

okay...we jus learned bout the "i"s can u explain those to me if u dont mind...

Answer 6

√(-1) = i
That's what it's defined as. In this problem we had √(-3) = √(-1)√(3) = i√(3)

Answer 7

Any time you have the square root of a negative number you can make it positive by pulling an "i" outside the square root.

Answer 8

oh okay...thnk u!