SOLUTION: Help to simplify the following would be appreciated : 3i^3 + 5i - 3i^2 + the square root of -25

SOLUTION: Help to simplify the following would be appreciated : 3i^3 + 5i - 3i^2 + the square root of -25 - 2

Question 64844This question is from textbook An Incremental Development
: Help to simplify the following would be appreciated :
3i^3 + 5i - 3i^2 + the square root of -25 - 2 This question is from textbook An Incremental Development

Answer by ankor@dixie-net.com(22740) (Show Source): You can put this solution on YOUR website!
:
3i^3 + 5i - 3i^2 + SqRt(-25) - 2
:
Let's deal with i^3: i^3 = (i^2)*i = -1*i = -i so we have:
-3i + 5i - 3(-1) + i*SqRt(25) - 2
:
+2i + 3 + 5i - 2
:
+1 + 7i
:
Could you follow this OK
RELATED QUESTIONS
Simplify (3i - 2)(5i - 3) - square root of -3 times the square root of -3 + 3i^2 -... (answered by stanbon)

3+5i... (answered by josgarithmetic,MathTherapy)