化简 (2-sqrt(-6))^2

解答

化简

(2 - - 6)^{2}

- 2 - 46 i

求解步骤

(2 - - 6)^{2}

使用完全平方公式:

(a - b)^{2} = a^{2} - 2 ab + b^{2}

(2 - - 6)^{2} = 2^{2} - 2 \cdot 2 - 6 + (- 6)^{2}

= 2^{2} - 2 \cdot 2 - 6 + (- 6)^{2}

2^{2} - 2 \cdot 2 - 6 + (- 6)^{2} = - 46 i - 2

= - 46 i - 2

Rewrite in standard complex form:

- 2 - 46 i

= - 2 - 46 i

\frac{2}{3} (x + 3) = 24

s im pl i f y (\frac{4 a ^{3 n}}{2 a ^{2 m}})^{- 2}

f a c t or 800 r^{3} + 2400 r^{2} + 2400 r + 800

∣ x ∣ = 4

f a c t or 9 x^{2} - 400