Friday

August 1, 2014

August 1, 2014

Posted by **sarah** on Monday, March 2, 2009 at 4:10pm.

(3+i)^2 - 3(3+i)+6

3+2i-9-3i+6

I got 0 - 1i

is this correct or do i use 0

- math -
**Reiny**, Monday, March 2, 2009 at 4:35pmfrom

(3+i)^2 - 3(3+i)+6

= 9 + 6i + i^2 - 9 - 3i + 6

= 3i + 5, remember i^2 = -1

**Related Questions**

Math - Evaluate: Give answers as fractions or integers. 1. (3^-2)^-1 2. -6^-2 ...

Math - Evaluate the following indefinite integral. Use C as the arbitrary ...

rational number math help - compare use < > = 1) -4/9 - 1/4 i got -0.6 <...

Math - Evaluate to the nearest tenth. 6 sqrt 10 subtract 9 sqrt 80 divided by ...

math 115 - 1. evaluate exactly square root 100- square root64 = 10- 8 = 2 is ...

math 115 - 1. divide 36/-4= 9 is this correct? 2. evaluate the expression |-5 +3...

math - Jen, I will attempt to write the others out. #3)ADD: -57 + (-22) I got -...

Math Analysis - Can someone check my answers please? Thank you! If tan x = 3/5, ...

calculus - v(r)= k(a-r)r^2 where k is a constant evaluate v at a. This is what I...

math - evaluate. 8 1⁄4 - 6 15⁄32 i got 2 7/32 is this correct. if ...