What is expand (6x^4-5x^2-7)left(-4x^3) ?

The solution to expand (6x^4-5x^2-7)left(-4x^3) is -24elx^7ft+20elx^5ft+28elx^3ft

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expand (6x^4-5x^2-7)left(-4x^3)

expand

(6 x^{4} - 5 x^{2} - 7) l e f t (- 4 x^{3})

- 24 e l x^{7} f t + 20 e l x^{5} f t + 28 e l x^{3} f t

Solution steps

(6 x^{4} - 5 x^{2} - 7) l e f t (- 4 x^{3})

= e l f t (6 x^{4} - 5 x^{2} - 7) (- 4 x^{3})

Distribute parentheses

= l e f t (- 4 x^{3}) \cdot 6 x^{4} + l e f t (- 4 x^{3}) (- 5 x^{2}) + l e f t (- 4 x^{3}) (- 7)

Apply minus-plus rules

+ (- a) = - a

= 6 e l x^{4} f t (- 4 x^{3}) - 5 e l x^{2} f t (- 4 x^{3}) - 7 e l f t (- 4 x^{3})

Simplify

6 e l x^{4} f t (- 4 x^{3}) - 5 e l x^{2} f t (- 4 x^{3}) - 7 e l f t (- 4 x^{3}) : - 24 e l x^{7} f t + 20 e l x^{5} f t + 28 e l x^{3} f t

= - 24 e l x^{7} f t + 20 e l x^{5} f t + 28 e l x^{3} f t

15 (\frac{2}{5} + 3 u)

(\frac{x}{6} - 3) (1 + 2 x)

\frac{( s ^{3} - 3 s )}{( s ^{4} - 9 )}

(x y e^{x} + y e^{x} + e^{x} y^{2}) d x + (x e^{x} + 2 y e^{x}) d y

(1 + 3 x) e^{2 x}

What is expand (6x^4-5x^2-7)left(-4x^3) ?
The solution to expand (6x^4-5x^2-7)left(-4x^3) is -24elx^7ft+20elx^5ft+28elx^3ft