8=a(1-3-sqrt(2))(1-3+sqrt(2))

解答

8 = a (1 - 3 - 2) (1 - 3 + 2)

a = 4

求解步骤

8 = a (1 - 3 - 2) (1 - 3 + 2)

交换两边

a (1 - 3 - 2) (1 - 3 + 2) = 8

化简

(1 - 3 - 2) (1 - 3 + 2) : 2

a \cdot 2 = 8

两边除以

2

a = 4

s im pl i f y \frac{6 e ^{- 0.01} - 6}{- 0.01}

- 7 < x \leq - 2

∣ x - 2 ∣ + 4 \leq 3

s im pl i f y 1 2^{- 3}

300000 = x e^{0.09 \cdot 4}