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James Chen TMUA Paper 1 · Q20

Paper 1Number & countingAlgebra

How many distinct positive integer pairs, (a,b)(a,b), with a>ba>b, solve the equation:

a2=b2+2025?a^2=b^2+2025?

Note: you are given that 2025=452=34×522025=45^2=3^4\times5^2.

A00
B11
C22
D33
E55
F77
G3535
H105105

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