Edexcel IGCSE Math A 2.2 algebraic manipulation
Use this manipulation page to collect terms, expand brackets, factorise expressions and rewrite algebra before applying it in equations.
- Syllabus
- First assessment 2018
- Course
- Math A 4MA1
- Level
- Higher
Use this manipulation page to collect terms, expand brackets, factorise expressions and rewrite algebra before applying it in equations.
Given that 8m+49m−9m=km where k is an integer and m is a prime number,
work out the value of k
12
1
B1
Factorise fully 8p2−2p
8p2−2p=2p(4p−1)
Final answer: 2p(4p-1)
Expand 4 t(3 t-2)
4t(3t−2)=12t2−8t
Final answer: 12t2−8t
Expand and simplify (5 x-2)(x+4)
\section*{1w=5y2−y3 \\ 1w=5y2−y3}
(a) Work out the value of w when y=-2
"
(5x−2)(x+4)=5x2+20x−2x−8=5x2+18x−8
Final answer: 5x2+18x−8
Factorise fully 16m3g3+24m2g5
8m2g3(2m+3g2)
Marking guidance:
- M1 for any correct partial factorisation with at least 2 factors, one of which must be a letter, or the correct common factor with no more than 1 error inside the bracket
- A1 for 8m2g3(2m+3g2)
Factorise y2−2y−48
(y-8)(y+6)
Marking guidance:
- M1 for (y±6)(y±8)
- A1 for (y-8)(y+6)