展开 7(2x+6)+2(2x+6)'

解答

展开

7 (2 x + 6) + 2 (2 x + 6)^{'}

14 x + 42 + 2 (2 x + 6)'

求解步骤

7 (2 x + 6) + 2 (2 x + 6)^{'}

乘开

7 (2 x + 6) : 14 x + 42

= 14 x + 42 + 2 (2 x + 6)^{'}

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