Thursday

November 27, 2014

November 27, 2014

Posted by **sarah** on Monday, March 2, 2009 at 4:42pm.

put in standard form a+bi

I really dont understand square roots so can you show me how to do these please

- Math -
**Reiny**, Monday, March 2, 2009 at 4:48pmby definition √-1 = i

so rewrite

(10√-13)(-5√-5) as

(10√-1√13)(-5√-i√5)

= (10i√13)(-5i√5)

= -50i^2√65

= +50√5

**Answer this Question**

**Related Questions**

Advanced Algebra - I some problems that I need help with please. Add or subtact ...

Math simplifying mixed radicals - Please help me simplify these following mixed ...

Math simplifying mixed radicals - Please help me simplify these following mixed...

Algebra - Rationalize each expression by building perfect nth root factors for ...

Math PLEASE HELP ASAP - -PLEASE INCLUDE SOLUTIONS AND EXPLAIN HOW YOU DID IT ...

math - 2.)If f(x)=3x,g(x)=x-3,and h(x)= the square root of x, find (fogox)(X). ...

math - 2.)If f(x)=3x,g(x)=x-3,and h(x)= the square root of x, find (fogox)(X). ...

7th grade math Ms. Sue please - 2. Shelly sews a blanket that has an area of 170...

Math Help - the square root of 3 times the square root of 15 also the square ...

Math ~CHECK MY ANSWER~ - 1) Which of these is a rational number? a. Pi b. Square...