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Nabla Tuition TMUA Paper 1 · Q13

Paper 1Algebra

The equation

4x−a 2x+1=04^x-a\,2^x+1=0

has two real solutions whose difference is 2.

Given that a>0a>0, find aa.

A22
B52\frac52
C33
D72\frac72
E44

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