What is expand (x+3)(3x^2+6x-4) ?

The solution to expand (x+3)(3x^2+6x-4) is 3x^3+15x^2+14x-12

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expand (x+3)(3x^2+6x-4)

expand

(x + 3) (3 x^{2} + 6 x - 4)

3 x^{3} + 15 x^{2} + 14 x - 12

Solution steps

(x + 3) (3 x^{2} + 6 x - 4)

Distribute parentheses

= x \cdot 3 x^{2} + x \cdot 6 x + x (- 4) + 3 \cdot 3 x^{2} + 3 \cdot 6 x + 3 (- 4)

Simplify

x \cdot 3 x^{2} + x \cdot 6 x + x (- 4) + 3 \cdot 3 x^{2} + 3 \cdot 6 x + 3 (- 4) : 3 x^{3} + 15 x^{2} + 14 x - 12

= 3 x^{3} + 15 x^{2} + 14 x - 12

3 \times 32

3 \times 24

3 \times 19

(4 - 7 i) (4 + 7 i)

7^{2}

What is expand (x+3)(3x^2+6x-4) ?
The solution to expand (x+3)(3x^2+6x-4) is 3x^3+15x^2+14x-12