展开 (Δ)(5x+3)

解答

展开

(Δ) (5 x + 3)

5Δ x + 3Δ

求解步骤

(Δ) (5 x + 3)

使用分配律:

a (b + c) = ab + a c

a = (Δ), b = 5 x, c = 3

= (Δ) \cdot 5 x + (Δ) \cdot 3

= 5 (Δ) x + 3 (Δ)

去除括号:

(a) = a

= 5Δ x + 3Δ

e x p an d x - (2 x - 1 = 23)

e x p an d (4 - 4 x - 10 y) \frac{d x}{d y}

e x p an d \frac{2 x ^{2}}{( 1 - x ) ^{3}}

e x p an d \frac{3 e ^{- 5 s}}{( s - 2 ) ( s + 1 )}

e x p an d c_{3} (ln (x) + 1)