ALGEBR A TRICK. Group 1 Galuh Dewi lestari (110210151012) Enin Lutfi Sundari (1102101510). For Mentally Solving Simultaneous Equation. How Fast You Solve These Simultaneous Equations?. x + 2y = 10 2x + 3y = 18. { in 10 sec}. The Correct Answer is. x = 6 y = 2. - PowerPoint PPT Presentation
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ALGEBRA TRICK
Group 1Galuh Dewi lestari (110210151012)
Enin Lutfi Sundari (1102101510)
Galuh and Enin
Galuh and Enin
For Mentally Solving Simultaneous
Equation
How Fast You Solve These Simultaneous Equations?
x + 2y = 102x + 3y = 18
{ in 10 sec}
Galuh and Enin
The Correct Answer is
x = 6y = 2
Galuh and Enin
First Let Us Tell you the Usual Way of solving These Simultaneous
Equations
Galuh and Enin
1. Elimination by Substitution.
2. Elimination by making the coefficient equal.
3. Easy Trick of Cross-Multiplication (Direct)
x + 2y = 102x + 3y = 18DIFFERENT WAYS TO SOLVE
Galuh and Enin
Usual Way
x + 2y = 102x + 3y = 18
Galuh and Enin
Faster Way
x + 2y = 102x + 3y = 18
Galuh and Enin
Try it!
x + 2y = 72x + 3y = 11
{ in 10 sec}
Galuh and Enin
The Answer
x = 1y = 3
Galuh and Enin
Try it!
4x + 9y = 47x + 2y = 11
{ in 10 sec}
Galuh and Enin
The Answer
x = 5y = 3
Galuh and Enin
Try it!
7x + 3y = 175x + 2y = 12
{ in 10 sec}
Galuh and Enin
The Answer
x = 2y = 1
Galuh and Enin
Faster multiplication of
Polynomial
Galuh and Enin
How fast you can solve this polynomial multiplication?
123.
452.23
23
xxxII
xxxI
Galuh and Enin
The Result is
4914251976 23456 xxxxxx
Galuh and Enin
Now I will Introduce you another way to solve it
Galuh and Enin
Multiply Two Polynomial Below !
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624 234 xxxx
223 234 xxxx
The Result :
Galuh and Enin
12111215165114 2345678 xxxxxxxx
Upps….. Sorry I get wrong answer
Galuh and Enin
Galuh and Enin
Here is the correct one !
12101217165114 2345678 xxxxxxxx
How can we check whether the answer
true or false ?
Galuh and Enin
Please Try to Multiply Both Polynomial by Your Self
Galuh and Enin
342. 24 xxxI
573. 3 xxII
Before we use the faster way, we must write zero to fill in the missing part of polynomial. So the polynomial become: