aplication

1. modulus inequalities
modulus of x, written |x|, is defined as x, if x ≥ 0 and – x, if x < 0.
Find solution of |3x-5| < |x+9|

2. equation
find solution of system y = 4x2–5x+6
y = 3x2-2x+4

3. integers exponent
simplify: x-3.y-3

4. discriminant
the term b2-4ac in quadratic formula is called discriminant.
find of the quadratic equation 25x2-30x+9=0

5. the quadratic function
if ax2+bx+c=0 is a quadratic equation, then the function f(x) = ax2+bx+c is called a quadratic function.

difficult words for my friend KIKI DHIWANTAMI (08301244033)

1. surds
2. rationals
3. denominator
4. side
5. length of edge
6. the base
7. integers
8. square
9. roots
10. distance
11. midpoint
12. intersection
13. extension
14. perpendicular
15. simplified
16. common line
17. segment
18. equilateral
19. radius
20. circumscribed
21. altitude
22. concurrent
23. acute
24. obtuse
25. chord
26. graph
27. functions
28. corresponding
29. ratios
30. statement
31. proved
32. truth table
33. inequality
34. simultaneous equation
35. integers exponents
36. surface area of the cone

my comment for mr. marsigit about mathematics junior high school book

sir, your article is very good. after I read it, I think that your article is really helped Junior High School student's in mathematics and english study, and only with one book. I wish that your next book is more better and useful for student..
Thank you...
Mariana Ruwi Dwi Astuti (08301244044) Mat NR'08

my preparation in participating lesson of English 2

In this semester two, mathematics education study program any English Language lessons again. This lessons is consist of two SKS. The university level instructor who teach this lessons is Mr Marsigit. When in the last semester, he is teach mathematics history lessons. He propose to student that to active in searching lecture material by stand alone. Is caused character as student is to demand to be stand alone. Beside that, because I take education study program, so, as a teacher candidate, is must gives good sample for the next generation with stand alone. So, expected to student is can join the class fluently. Mr Marsigit is include an smart people with many concept. He’s have many international conection sectors. He’s also already make some mathematics bilingual book for junior high school. In semester two, many prepare that I have to do for English Language lessons. That is with searching an reference in internet, support english books, vocabulary and grammar in learning and preparing. By internet, with google or wikipedia, I get the material of English Language very much and broad about the meaning. With the book is also complete in searching the material of English Language. Learning vocabulary and grammar is to make easier and perfect in study and speak english. Beside that, I also already preparing some blog to do some exercise from Mr Marsigit. With the blog, the students with easier can have done their work. In this lecture is also would be held some class discussion.