因式分解 (a+3)(a+1)-4(a+1(a-2))

解答

因式分解

(a + 3) (a + 1) - 4 (a + 1 (a - 2))

a^{2} - 4 a + 11

求解步骤

(a + 3) (a + 1) - 4 (a + 1 \cdot (a - 2))

4 (a + 1 \cdot (a - 2)) = 8 (a - 1)

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

乘开

(a + 3) (a + 1) : a^{2} + 4 a + 3

= a^{2} + 4 a + 3 - 8 (a - 1)

乘开

- 8 (a - 1) : - 8 a + 8

= a^{2} + 4 a + 3 - 8 a + 8

化简

a^{2} + 4 a + 3 - 8 a + 8 : a^{2} - 4 a + 11

= a^{2} - 4 a + 11

f (x) = e^{(- x^{2})} + sin (x)

s im pl i f y [30]

f a c t or e^{6 x^{3} - 2 y^{4}}

f a c t or 12 m^{2} - 13 - 35

f a c t or 9 x^{6} + x