展开 3(4-12x)-6(2x-3=36+2(3x+2))

解答

展开

3 (4 - 12 x) - 6 (2 x - 3 = 36 + 2 (3 x + 2))

- 48 x + 30 = - 36 x + 12

求解步骤

3 (4 - 12 x) - 6 (2 x - 3 = 36 + 2 (3 x + 2))

= 3 (4 - 12 x) - 6 (2 x - 3 \cdot 36 = + 2 (3 x + 2))

乘开

3 (4 - 12 x) : 12 - 36 x

= 12 - 36 x - 6 (2 x - 3 = 36 + 2 (3 x + 2))

乘开

- 6 (2 x - 3 = 36 + 2 (3 x + 2)) : - 12 x + 18 = - 36 x + 12

12 - 36 x - 12 x + 18 = - 36 x + 12

乘开

12 - 36 x - 12 x + 18 : - 48 x + 30

- 48 x + 30 = - 36 x + 12

e x p an d \frac{4 ( x + h ) + 7}{7 ( x + h ) - 6}

e x p an d z - (\frac{3}{5 + 3 i})

e x p an d A (0, - 6) B (5, - 6)

e x p an d \frac{1}{( s + 4 ) ( s + 8 )}

e x p an d \frac{( 2 a - 3 b ) ^{2}}{36}