Puzzle matematic
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Material didactic pentru elevii clasei a VIII-a
![Rezolva釘i 樽n 5 pai inecua釘ia:
-3(x-4)>5(4+x), xR
A.A. B. Rezolvare:
1.
2.
3.
4.
5.
FELICITRI !!!
B. Rezolvare:
1.
2.
3.
4.
5.
FELICITRI !!!
-3x-12
-1
20-12
-3x-5x
(-1;+)
-4
>
<
<
>
>
8
x
-3x+12
20+12
-3x-5x
32
20+5x
(-;-1)
(-;-1]
-8x
x
(-;-4)
-3x+12 > 20+5x
-3x-5x > 20-12
-8x > 8
x < -1
x (-;-1)](https://image.slidesharecdn.com/puzzlematematic-150502125522-conversion-gate02/85/Puzzle-matematic-2-320.jpg)
Puzzle matematic
- 1. Puzzle matematic Autor: Pop Peter coala cu clasele I-VIII nr. 1 Negreti-Oa
- 2. Rezolva釘i 樽n 5 pai inecua釘ia: -3(x-4)>5(4+x), xR A.A. B. Rezolvare: 1. 2. 3. 4. 5. FELICITRI !!! B. Rezolvare: 1. 2. 3. 4. 5. FELICITRI !!! -3x-12 -1 20-12 -3x-5x (-1;+) -4 > < < > > 8 x -3x+12 20+12 -3x-5x 32 20+5x (-;-1) (-;-1] -8x x (-;-4) -3x+12 > 20+5x -3x-5x > 20-12 -8x > 8 x < -1 x (-;-1)