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Questions  >>  SAT  >>  Math  >>  Quadratic Equations
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Q)

If $a^2+b^2=8$ and $(a-b)^2=4$, what value of $ab$ ?

$\begin{array}{1 1} (a)\; 2 \\ (b)\; 4 \\ (c)\; 6 \\ (d)\; 8 \end{array}$

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