Edexcel IGCSEMathematicsGeneral Applications5 Marks
Simplify 5p × 3q.
- (a)Simplify 5p × 3q.[1]
- (b)Factorise x² + 7x + 10.[2]
- (c)Expand and simplify (y+3)(y-5).[2]
Mark scheme
Marking points from the official mark scheme. The mark or mark type is shown in brackets.
- (a) B1 for 15pq
- (b) M1 for (x ± a)(x ± b) where ab = ± 10 or a+b = ± 7
- (b) A1 for (x+2)(x+5)
- (c) M1 for 3 terms correct out of 4 or 4 terms correct ignoring signs (e.g., y² - 5y + 3y - 15)
- (c) A1 for y² - 2y - 15
Write your answer and get it marked
On Oracle Prep you can write or photograph your own answer and have it marked by AI against this mark scheme, with feedback on what you missed.
Sign up free →