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StepMaths Mock Paper 1 · Q11

Paper 1Algebra

Let the solutions to the equation 22x+1−2x−2x+3+22=02^{2x+1}-2^x-2^{x+3}+2^2=0 be aa and bb. Find the value of a+ba+b.

A11
B−1-1
C52\dfrac52
D−52-\dfrac52
E44

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