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Mathematics

Simplify:

(2324)(23+24)(2^{-3} - 2^{-4})(2^{-3} + 2^{-4})

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Answer

(2324)(23+24)=(123124)(123+124)=(18116)(18+116)(2^{-3} - 2^{-4})(2^{-3} + 2^{-4})\\[1em] = \Big(\dfrac{1}{2}^3 - \dfrac{1}{2}^4\Big)\Big(\dfrac{1}{2}^3 + \dfrac{1}{2}^4\Big)\\[1em] = \Big(\dfrac{1}{8} - \dfrac{1}{16}\Big)\Big(\dfrac{1}{8} + \dfrac{1}{16}\Big)

LCM of 8 and 16 is 2 x 2 x 2 x 2 = 16

=(1×28×21×116×1)(1×28×2+1×116×1)=(216116)(216+116)=(2116)(2+116)=(116)(316)=(3256)= \Big(\dfrac{1 \times 2}{8 \times 2} - \dfrac{1 \times 1}{16 \times 1}\Big)\Big(\dfrac{1 \times 2}{8 \times 2} + \dfrac{1 \times 1}{16 \times 1}\Big)\\[1em] = \Big(\dfrac{2}{16} - \dfrac{1}{16}\Big)\Big(\dfrac{2}{16} + \dfrac{1}{16}\Big)\\[1em] = \Big(\dfrac{2-1}{16}\Big)\Big(\dfrac{2+1}{16}\Big)\\[1em] = \Big(\dfrac{1}{16}\Big)\Big(\dfrac{3}{16}\Big)\\[1em] = \Big(\dfrac{3}{256}\Big)

(2324)(23+24)=(3256)(2^{-3} - 2^{-4})(2^{-3} + 2^{-4}) = \Big(\dfrac{3}{256}\Big)

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