Question 17 — IGCSE 0580 Oct/Nov 2025 Paper 13
Cambridge IGCSE Mathematics 0580, Core tier, non-calculator. Topic: Numbers · The four rules. Worth 5 marks.
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Question text
17 (a) kx#k5 = k20
Find the value of x.
x = ................................................ [1]
(b) Expand and simplify.
(x+5)(x-4)
................................................. [2]
(c) Factorise.
21r3-7r
................................................. [2]
SIHT
NI
ETIRW
TON
OD
NIGRAM
SIHT
NI
ETIRW
TON
OD
NIGRAM
Mark scheme
