ECZ 2010 · O-Level Paper 2 · Question 1 — Algebra
Question from ECZ 2010 · O-Level Paper 2 · Question 1
(a) Factorise completely 5 - 20x2.[2]
Verified working — step 1
Take out the common factor 5 first.(b) Solve the equation 2(2x - 5) + 2 = x + 7.[3]
Verified working — step 1
Expand the bracket: 2(2x - 5) = 4x - 10.(c) Express 21 - 3x + 45 + x as a single fraction in its simplest form.[3]
Verified working — step 1
Common denominator (1 - 3x)(5 + x).The full step-by-step working and final answer are included with Premium — checked against ECZ marking standards.
Original examination question © Examinations Council of Zambia. Worked solution and commentary © G12 Titan — not to be reproduced without permission.
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