Using the method of quoting factor: 7 / 16 of 16.8 * 32 + 7.6 * 7 / 16

Original formula = 8.4 * 7 / 16 + 7.6 * 7 / 16
=(8.4+7.6)*7/16
=16*7/16
=7

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1. Using the method of extracting common factor to calculate Using the square difference factorization factor 1 / to decompose the following formula 1. M + 2 power of a - (2b-c) 2. M power of a 3. A (x-1) + 4 (1-x) 4. (x + y + Z) - (X-Y-Z) 5. (3x + 2x-8) - (x-2x-8)
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