Elementary Mathematics • Topic Practice Hub
Algebraic Identities (ADRE Questions & PYQ Solutions)
Practice official ADRE solved questions and previous year paper sets for Algebraic Identities. Includes step-by-step solutions and explanations. Explore 2 questions collected from official SLRC ADRE Grade 3 & Grade 4 papers.
Total MCQs
2
Official PYQs
2
Subject
Elementary Mathematics
Format
Bilingual MCQs
Solved MCQs & Official Answer Explanations
ADRE 2024 • 2024 Paper 2Question 1
What must be added to $(a - b)^2$ in order to get $(a + b)^2$?
A.2ab
B.-2ab
C.4ab ✓ (Correct)
D.-4ab
Explanation: $(a + b)^2 - (a - b)^2 = (a^2 + 2ab + b^2) - (a^2 - 2ab + b^2) = 4ab$[cite: 3].
ADRE 2024 • 2024 Paper 3Question 2
Two numbers A and B are first added and squared to get C. In the next step, B is subtracted from A and the result is squared to get D. The result C – D expressed in terms of A and B is
A.A(A + B)
B.4(A + B)
C.AB/4
D.4AB ✓ (Correct)
Explanation: $C - D = (A + B)^2 - (A - B)^2 = 4AB$[cite: 5, 6].
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