化简 (x^2+3x+1\circ 3x+5)(3)

解答

化简

(x^{2} + 3 x + 1 \circ 3 x + 5) (3)

3 (x^{2} + 3 x + 3 \circ x + 5)

求解步骤

(x^{2} + 3 x + 1 \circ 3 x + 5) (3)

去除括号:

(a) = a

= (x^{2} + 3 x + 1 \circ 3 x + 5) \cdot 3

数字相乘:

1 \cdot 3 = 3

= 3 (x^{2} + 3 x + 3 \circ x + 5)

e x p an d 2 x (cos (y) - y sin (y))

e x p an d \frac{4 x}{( x + 2 ) ( x - 2 )}

\frac{d ^{4}}{d x ^{4}} ((y) (2 x^{5} - 2 x))

e x p an d (2 + x cos (θ))^{2}

e x p an d \frac{x ^{3}}{( x ^{4} + 6 ) ^{5}}