展开 (sqrt(11)+sqrt(3))*sqrt(11)

解答

展开

(11 + 3) \cdot 11

11 + 33

十进制

16.74456 \dots

求解步骤

(11 + 3) 11

= 11 (11 + 3)

使用分配律:

a (b + c) = ab + a c

11 (11 + 3) = 1111 + 113

= 1111 + 113

1111 + 113 = 11 + 33

= 11 + 33

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