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$\large \left( \sqrt{{\color{#D61F06}60}} + {\color{#3D99F6}3}\sqrt{{\color{#3D99F6}7}}\right)^2\left( \sqrt{{\color{#D61F06}60}} - {\color{#3D99F6}3}\sqrt{{\color{#3D99F6}7}}\right)^2 = \ ?$

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