化简 6(2+sqrt(5))

解答

化简

6 (2 + 5)

12 + 65

十进制

25.41640 \dots

求解步骤

6 (2 + 5)

使用分配律:

a (b + c) = ab + a c

6 (2 + 5) = 6 \cdot 2 + 65

= 6 \cdot 2 + 65

数字相乘:

6 \cdot 2 = 12

= 12 + 65

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