Friday

December 19, 2014

December 19, 2014

Posted by **John** on Sunday, September 30, 2012 at 2:21pm.

it is

4i^2(-4i) = -16i^3 ?

If it is not right, please help.

thanks!

- Math - Imaginary -
**Reiny**, Sunday, September 30, 2012 at 3:37pm(4i)(-4i) --------> (4)(4) = 16 and i(-i) = -i^2

= -16i^2

= -16(-1) = 16

I have no clue what you were doing, or how you got that answer.

**Answer this Question**

**Related Questions**

math - 2i/4-8i 2i/4-8i * (4+8i)/(4+8i) then i multiplied the top and bottom and ...

Algebra II - Is this right? (4-i)(-3+4i) -12+16i+3i-4i^2 -12+19i+4 -8+19i (...

algebra2-imaginary numbers - You can add or subtract complex numbers by treating...

Algebra - State the possible number of imaginary zeros of g(x)= x^4+3x^3+7x^2-6x...

maths - (3x + 4) + (5y -1) = 10 - 16i A. x = 2, y = -3 B. x = 1, y = -2 C. x = 3...

Math - Hi, I have to write a research paper and I decided to write about the ...

Math, ASAP Please - What is an Imaginary Number?

Math Analysis - Tell if the function is symmetric with respect to the x-axis, y-...

Please help me with M1 kinematics! - A particle p is initially at the point (2...

Precalculus - "Show that x^6 - 7x^3 - 8 = 0 has a quadratic form. Then find the ...