化简 2(11+sqrt(41))

解答

化简

2 (11 + 41)

22 + 241

十进制

34.80624 \dots

求解步骤

2 (11 + 41)

使用分配律:

a (b + c) = ab + a c

2 (11 + 41) = 2 \cdot 11 + 241

= 2 \cdot 11 + 241

数字相乘:

2 \cdot 11 = 22

= 22 + 241

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