因式分解 (X\notin A)+(X\notin B)

解答

因式分解

(X \in / A) + (X \in / B)

\in / X (A + B)

求解步骤

(X \in / A) + (X \in / B)

去除括号:

(a) = a

= X \in / A + X \in / B

因式分解出通项

X \in /

= X \in / (A + B)

f a c t or e^{- 2 t} cos (t) + e^{2 t} cos (t)

f a c t or 6^{2}

f a c t or 3 x^{2} + 14 - 24

f a c t or 6^{3}

f a c t or 1^{2} - x - 6