Zusammenfassung der Ressource
Algebra Revision
- Factorising
Anmerkungen:
- e.g- 10x + 15 = 5 (2x+3) find HCF (highest common factor) work out what to multiply this number by to get each term
- Substitution
- p* + r*= answ-3*+7*- 7 to the power of 2 7×7= sum becomes 9+49=58
- Solving equations
- eg- x+5=12-subtract 5 away from from x so x is on its own (same on other side) 12-5=7 so x=7
- Collecting like terms
- 6x+3y-+2y in this formula their are 4 terms 6x,3y,7 and 2x
- simple formula
- 2 columns multiply final cost
- Expanding brackets
- CLAW METHOD 6 (×+5) Multiply outside number with letters or numbers inside the brackets answ- 6x+30