因式分解 (x^2-16)/(x-4)

解答

因式分解

\frac{x ^{2} - 16}{x - 4}

x + 4

求解步骤

\frac{x ^{2} - 16}{x - 4}

分解

x^{2} - 16 : (x + 4) (x - 4)

= \frac{( x + 4 ) ( x - 4 )}{x - 4}

约分:

x - 4

= x + 4

f a c t or (a - 3 b)^{2} - 6 (a - 3 b) + 9

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

s im pl i f y (a)^{2} + (b)^{2}

f a c t or 16 am - 12 an - 12 bm + 9 bn

f a c t or tan (x^{2} - 1)