因式分解 a^2-b^2-a-b

解答

因式分解

a^{2} - b^{2} - a - b

(a + b) (a - b - 1)

求解步骤

a^{2} - b^{2} - a - b

因式分解

a^{2} - b^{2} : (a + b) (a - b)

因式分解

- a - b : - (a + b)

= (a + b) (a - b) - (a + b)

因式分解出通项

(a + b) : (a + b) (a - b - 1)

= (a + b) (a - b - 1)

s im pl i f y \frac{( d - d ^{2} )}{( d ^{2} )}

s im pl i f y (3 x 1 0^{8})^{2}

s im pl i f y (\frac{2 x + 1}{3 y})^{3}

j o in \frac{( 3 - 1 )}{( 3 + 1 ) - a - b \cdot 3}

f a c t or 7 a^{3} b^{2} c - 21 a^{2} b^{3} c^{2} - 28 a^{2} b^{2} c^{3}