Diskussion:Repetera kvadreringsreglerna: Skillnad mellan sidversioner
Hoppa till navigering
Hoppa till sök
Hakan (diskussion | bidrag) (Skapade sidan med '== Facit == Använd konjugatregeln för att ta bort parenteserna i följande uttryck: <br> 1. (1+x)<sup>2</sup> = '''1+2x+x<sup>2</sup>''' <br> 2. (2+2x)<sup>2</sup> = '''1+2...') |
Hakan (diskussion | bidrag) (→Facit) |
||
| (5 mellanliggande sidversioner av samma användare visas inte) | |||
| Rad 1: | Rad 1: | ||
== Facit == | == Facit == | ||
[[File:Missing square edit.gif|thumb|Missing square edit]] | |||
<br> | <br> | ||
1. (1+x)<sup>2</sup> = '''1+2x+x<sup>2</sup>''' | 1. (1+x)<sup>2</sup> = '''1+2x+x<sup>2</sup>''' | ||
<br> | <br> | ||
2. (2+2x)<sup>2</sup> = ''' | 2. (2+2x)<sup>2</sup> = '''4+8x+4x<sup>2</sup>''' | ||
<br> | <br> | ||
3. (2-3x)<sup>2</sup> = ''' | 3. (2-3x)<sup>2</sup> = '''4-12x+9x<sup>2</sup>''' | ||
<br> | <br> | ||
4. (8+9x)<sup>2</sup> = ''' | 4. (8+9x)<sup>2</sup> = '''64+144x+81x<sup>2</sup>''' | ||
<br> | <br> | ||
5. (0.5-10x)<sup>2</sup> = ''' | 5. (0.5-10x)<sup>2</sup> = '''0.25-10x+100x<sup>2</sup>''' | ||
<br> | <br> | ||
6. (a-b)<sup>2</sup> = ''' | 6. (a-b)<sup>2</sup> = '''a<sup>2</sup>-2ab+b<sup>2</sup>''' | ||
<br> | <br> | ||
7. (a+bx)<sup>2</sup> = ''' | 7. (a+bx)<sup>2</sup> = '''a<sup>2</sup>+2abx+b<sup>2</sup>x<sup>2</sup>''' | ||
<br> | <br> | ||
8. (0.4a+3x)<sup>2</sup> = ''' | 8. (0.4a+3x)<sup>2</sup> = '''0.16a<sup>2</sup>+2.4ax+9x<sup>2</sup>''' | ||
<br> | <br> | ||
9. (3y-2x<sup>2</sup>)<sup>2</sup> = ''' | 9. (3y-2x<sup>2</sup>)<sup>2</sup> = '''9y<sup>2</sup>-12x<sup>2</sup>y+4x<sup>4</sup>''' | ||
<br> | <br> | ||
Nuvarande version från 7 februari 2012 kl. 10.27
Facit
1. (1+x)2 = 1+2x+x2
2. (2+2x)2 = 4+8x+4x2
3. (2-3x)2 = 4-12x+9x2
4. (8+9x)2 = 64+144x+81x2
5. (0.5-10x)2 = 0.25-10x+100x2
6. (a-b)2 = a2-2ab+b2
7. (a+bx)2 = a2+2abx+b2x2
8. (0.4a+3x)2 = 0.16a2+2.4ax+9x2
9. (3y-2x2)2 = 9y2-12x2y+4x4