因式分解 6(4z-3)^2+7(4z-3)-3

解答

因式分解

6 (4 z - 3)^{2} + 7 (4 z - 3) - 3

2 (8 z - 3) (6 z - 5)

求解步骤

6 (4 z - 3)^{2} + 7 (4 z - 3) - 3

乘开

6 (4 z - 3)^{2} + 7 (4 z - 3) - 3 : 96 z^{2} - 116 z + 30

= 96 z^{2} - 116 z + 30

分解

96 z^{2} - 116 z + 30 : 2 (8 z - 3) (6 z - 5)

= 2 (8 z - 3) (6 z - 5)

2 x + 10 = 6

7 + 2 ∣ 3 x + 4 ∣ < 21

f a c t or 16 x^{2} - 56 x + 49

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

s im pl i f y 3 a + 4 [c - 2 a [3 (4 - b)] + 3 c] + 3