展开 (3x+1)\circ*3^{x+1}

解答

展开

(3 x + 1) \circ \cdot 3^{x + 1}

\circ 3^{x + 2} x + \circ 3^{x + 1}

求解步骤

(3 x + 1) \circ 3^{x + 1}

= \circ 3^{x + 1} (3 x + 1)

使用分配律:

a (b + c) = ab + a c

a = \circ 3^{x + 1}, b = 3 x, c = 1

= \circ 3^{x + 1} \cdot 3 x + \circ 3^{x + 1} \cdot 1

= 3 \circ 3^{x + 1} x + 1 \circ 3^{x + 1}

化简

3 \circ 3^{x + 1} x + 1 \circ 3^{x + 1} : \circ 3^{x + 2} x + \circ 3^{x + 1}

= \circ 3^{x + 2} x + \circ 3^{x + 1}

e x p an d 3 a - 2 b + c - 9 d + 2 a + 6 b - 3 d + 4 a

e x p an d x (x - 1)

e x p an d 2 (8 x - 9 y = 2)

e x p an d \frac{2}{( 81 + 36 x ) ^{2}}

e x p an d \frac{1}{( x + h + 2 ) ^{2}}