Thursday

October 2, 2014

October 2, 2014

Posted by **muma** on Thursday, November 10, 2011 at 8:02am.

(a) 47 (23 +36 -7 )

(b) (37 -2 )squared

(c) (1624)/(496)

(d) 7/(20 ) - 4/(12)

(e) (32)/(12) - (53)/(8 )

- math -
**Reiny**, Thursday, November 10, 2011 at 8:55amI will assume your is supposed to be a √

To do these, you should know the basic laws for radicals, such as

√a x √b = √(ab) etc.

I will do the first and last, give the others a shot

a)

4√7(2√3 + 3√6 - √7)

= 8√21 + 12√42 - 4√49

= 8√21 + 12√42 - 28

e)

3√2/√12 - 5√3/√8

= 3√2/(2√3) - 5√3/(2√2)

= 3√2/(2√3)**(√3/√3)**- 5√3/(2√2)**(√2/√2)**

= 3√6/6 - 5√6/4

= √6/2 - 5√6/4

= 2√6/4 - 5√6/4

= -3√6/4

**Answer this Question**

**Related Questions**

algebra - multiply and simplify 12 24

Physical Science - Which of the following is a balanced equation? a. A1 + CuSO4...

Linear Algebra - Find an example of 2 by2 matrices with a12 = .5 for which: a. A...

Calculus - An arithmetic progression has terms a8 =23 and a20 =83 . What is the ...

Calculus - 27 + 12 - 32 - 8 27 = 3*3*3 = 33 12 = 2*2*3 = 23...

college math 209 - simplify as much as possible y^248yv^2 - v12 y^5

math - Simplify 12+18-27+50 thnx a lot any help is greatly appriceted...

Math - Can you please check these problems? 1. 528+245=_____ I got 107+6...

Pre Calc - I already asked this question and had some help, but I am still ...

Pre Calc-decode matrix - help!-matrix size is 3x3 clues for the encoding matrix...