展开 5sqrt(3)(2sqrt(2)+4)

解答

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53 (22 + 4)

106 + 203

十进制

59.13591 \dots

求解步骤

53 (22 + 4)

使用分配律:

a (b + c) = ab + a c

53 (22 + 4) = 53 \cdot 22 + 53 \cdot 4

= 53 \cdot 22 + 53 \cdot 4

53 \cdot 22 + 53 \cdot 4 = 106 + 203

= 106 + 203

e x p an d (2 x) l e f t (2 x + 7)

e x p an d \frac{11 x + 7}{( 2 x - 1 ) ( x + 2 ) ^{2}}

e x p an d \frac{- 4 x + 6}{( x - 2 ) ^{2} ( x - 1 ) ^{2}}

e x p an d (x^{\frac{3}{2}} - 4)^{3}

e x p an d 2 (ln (- 1) + 1)