Algebra Presentation on Topic Modulus Function and Polynomials Created by Prastyo Performance Task Binus School Bekasi

1. ALgebra:
Polynomial and modulus
functions!
Chiquita & Tyo HS12B

2. Polynomials
as introduced by Tyo

3. question #1
Multiply
3x4-x3+2x2-5 with x2-3x+2

4. answer
3x6-10x5+11x4-8x3-x2+15x-10
How?
3x6-9x5+6x4-x5+3x4-2x3+2x4-6x3+4x2-5x2+15x-10
= 3x6-10x5+11x4-8x3-x2+15x-10

5. question #2
Polynomial p(x) has a and b constant. It’s given that (x-4) and
(2x-6) are factor of p(x).
Find value of a and b
P(x) = 2x2 + ax - b

6. answer
A = -14
B = -24
How?
2(4)2 + 4a – b = 32 + 4a – b
2(3)2 + 3a – B = 18 + 3a – b
Use elimination and
substitution
32 + 4a – b
18 + 3a – b
_________ -
14 + a = 0
a = -14
18 + 3(-14) – b = 0
18 + (-42) – b = 0
-24 – b = 0
-b = 24
b = -24

7. Modulus function
introduced by Chiquita

8. question #1

9. Solve #1
v
v
final answer:
x > 3/2
let’s check!

10. answer
see. i’m correct (for once)

11. question #2

12. Solve #2
v
final answer:
x > 3/2
let’s check!

13. answer

14. Thanks!TYO CHIQUITA

15. Credits
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