What is expand (x+4)(3x^2-x-2) ?

The solution to expand (x+4)(3x^2-x-2) is 3x^3+11x^2-6x-8

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expand (x+4)(3x^2-x-2)

expand

(x + 4) (3 x^{2} - x - 2)

3 x^{3} + 11 x^{2} - 6 x - 8

Solution steps

(x + 4) (3 x^{2} - x - 2)

Distribute parentheses

= x \cdot 3 x^{2} + x (- x) + x (- 2) + 4 \cdot 3 x^{2} + 4 (- x) + 4 (- 2)

Simplify

x \cdot 3 x^{2} + x (- x) + x (- 2) + 4 \cdot 3 x^{2} + 4 (- x) + 4 (- 2) : 3 x^{3} + 11 x^{2} - 6 x - 8

= 3 x^{3} + 11 x^{2} - 6 x - 8

- x^{2} \times x

(- 11 x^{3} - 3 x^{2})^{2}

23 \times 5

23 \times 3

\frac{1 + i}{2 - 3 i}

What is expand (x+4)(3x^2-x-2) ?
The solution to expand (x+4)(3x^2-x-2) is 3x^3+11x^2-6x-8